1105 lines
43 KiB
JSON
1105 lines
43 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-5545",
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"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
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"state": "PUBLISHED",
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"assignerShortName": "curl",
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"dateReserved": "2026-04-04T12:10:07.125Z",
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"datePublished": "2026-05-13T08:27:26.065Z",
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"dateUpdated": "2026-09-15T06:02:59.285Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
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"shortName": "curl",
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"dateUpdated": "2026-09-15T06:02:59.285Z"
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},
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"title": "wrong reuse of HTTP Negotiate connection",
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"descriptions": [
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{
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"lang": "en",
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"value": "libcurl might in some circumstances reuse the wrong connection when asked to\ndo an authenticated HTTP(S) request after a Negotiate-authenticated one, when\nboth use the same host.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials.\n\nAn application that first uses Negotiate authentication to a server with\n`user1:password1` and then does another operation to the same server asking\nfor any authentication method but for `user2:password2` (while the previous\nconnection is still alive) - the second request gets confused and wrongly\nreuses the same connection and sends the new request over that connection\nthinking it uses a mix of user1's and user2's credentials when it is in fact\nstill using the connection authenticated for user1..."
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}
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],
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"affected": [
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{
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"vendor": "curl",
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"product": "curl",
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"versions": [
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{
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"version": "7.10.6",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "8.14.2"
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},
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{
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"version": "8.15.0",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "8.16.1"
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},
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{
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"version": "8.17.0",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "8.20.0"
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}
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],
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"defaultStatus": "unaffected"
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},
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{
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"vendor": "curl",
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"product": "curl",
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"versions": [
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{
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"version": "e56ae1426cb7a0a4a427cf8d6099a821fdaae428",
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"status": "affected",
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"versionType": "git",
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"lessThan": "33e43985b8f3b9e66691d06e70be0395849856cd"
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}
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],
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"defaultStatus": "unaffected",
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"repo": "https://github.com/curl/curl.git"
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},
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{
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"vendor": "curl",
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"product": "curl",
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"versions": [
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{
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"version": "8.19.0",
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"status": "affected"
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},
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{
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"version": "8.18.0",
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"status": "affected"
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},
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{
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"version": "8.17.0",
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"status": "affected"
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},
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{
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"version": "8.16.0",
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"status": "affected"
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},
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{
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"version": "8.15.0",
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"status": "affected"
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},
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{
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"version": "8.14.1",
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"status": "affected"
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},
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{
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"version": "8.14.0",
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"status": "affected"
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},
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{
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"version": "8.13.0",
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"status": "affected"
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},
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{
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"version": "8.12.1",
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"status": "affected"
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},
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{
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"version": "8.12.0",
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"status": "affected"
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},
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{
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"version": "8.11.1",
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"status": "affected"
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},
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{
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"version": "8.11.0",
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"status": "affected"
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},
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{
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"version": "8.10.1",
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"status": "affected"
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},
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{
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"version": "8.10.0",
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"status": "affected"
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},
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{
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"version": "8.9.1",
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"status": "affected"
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},
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{
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"version": "8.9.0",
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"status": "affected"
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},
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{
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"version": "8.8.0",
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"status": "affected"
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},
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{
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"version": "8.7.1",
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"status": "affected"
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},
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{
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"version": "8.7.0",
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"status": "affected"
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},
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{
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"version": "8.6.0",
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"status": "affected"
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},
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{
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"version": "8.5.0",
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"status": "affected"
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},
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{
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"version": "8.4.0",
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"status": "affected"
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},
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{
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"version": "8.3.0",
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"status": "affected"
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},
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{
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"version": "8.2.1",
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"status": "affected"
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},
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{
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"version": "8.2.0",
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"status": "affected"
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},
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{
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"version": "8.1.2",
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"status": "affected"
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},
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{
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"version": "8.1.1",
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"status": "affected"
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},
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{
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"version": "8.1.0",
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"status": "affected"
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},
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{
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"version": "8.0.1",
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"status": "affected"
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},
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{
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"version": "8.0.0",
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"status": "affected"
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},
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{
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"version": "7.88.1",
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"status": "affected"
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},
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{
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"version": "7.88.0",
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"status": "affected"
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},
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{
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"version": "7.87.0",
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"status": "affected"
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},
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{
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"version": "7.86.0",
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"status": "affected"
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},
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{
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"version": "7.85.0",
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"status": "affected"
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},
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{
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"version": "7.84.0",
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"status": "affected"
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},
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{
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"version": "7.83.1",
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"status": "affected"
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},
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{
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"version": "7.83.0",
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"status": "affected"
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},
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{
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"version": "7.82.0",
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"status": "affected"
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},
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{
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"version": "7.81.0",
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"status": "affected"
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},
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{
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"version": "7.80.0",
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"status": "affected"
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},
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{
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"version": "7.79.1",
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"status": "affected"
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},
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{
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"version": "7.79.0",
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"status": "affected"
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},
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{
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"version": "7.78.0",
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"status": "affected"
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},
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{
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"version": "7.77.0",
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"status": "affected"
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},
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{
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"version": "7.76.1",
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"status": "affected"
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},
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{
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"version": "7.76.0",
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"status": "affected"
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},
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{
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"version": "7.75.0",
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"status": "affected"
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},
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{
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"version": "7.74.0",
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"status": "affected"
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},
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{
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"version": "7.73.0",
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"status": "affected"
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},
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{
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"version": "7.72.0",
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"status": "affected"
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},
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{
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"version": "7.71.1",
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"status": "affected"
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},
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{
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"version": "7.71.0",
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"status": "affected"
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},
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{
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"version": "7.70.0",
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"status": "affected"
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},
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{
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"version": "7.69.1",
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"status": "affected"
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},
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{
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"version": "7.69.0",
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"status": "affected"
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},
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{
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"version": "7.68.0",
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"status": "affected"
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},
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{
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"version": "7.67.0",
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"status": "affected"
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},
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{
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"version": "7.66.0",
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"status": "affected"
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},
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{
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"version": "7.65.3",
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"status": "affected"
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},
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{
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"version": "7.65.2",
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"status": "affected"
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},
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{
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"version": "7.65.1",
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"status": "affected"
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},
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{
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"version": "7.65.0",
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"status": "affected"
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},
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{
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"version": "7.64.1",
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"status": "affected"
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},
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{
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"version": "7.64.0",
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"status": "affected"
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},
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{
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"version": "7.63.0",
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"status": "affected"
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},
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{
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"version": "7.62.0",
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"status": "affected"
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},
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{
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"version": "7.61.1",
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"status": "affected"
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},
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{
|
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"version": "7.61.0",
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"status": "affected"
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},
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{
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"version": "7.60.0",
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"status": "affected"
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},
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{
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"version": "7.59.0",
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"status": "affected"
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},
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{
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"version": "7.58.0",
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"status": "affected"
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},
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{
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"version": "7.57.0",
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"status": "affected"
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},
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{
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"version": "7.56.1",
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"status": "affected"
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},
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{
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"version": "7.56.0",
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"status": "affected"
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},
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{
|
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"version": "7.55.1",
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|
"status": "affected"
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},
|
|
{
|
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"version": "7.55.0",
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"status": "affected"
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},
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{
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"version": "7.54.1",
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"status": "affected"
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},
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{
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"version": "7.54.0",
|
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"status": "affected"
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},
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{
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"version": "7.53.1",
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"status": "affected"
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},
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{
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"version": "7.53.0",
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"status": "affected"
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},
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{
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"version": "7.52.1",
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"status": "affected"
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},
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{
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"version": "7.52.0",
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"status": "affected"
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},
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{
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"version": "7.51.0",
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"status": "affected"
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},
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{
|
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"version": "7.50.3",
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"status": "affected"
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},
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{
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"version": "7.50.2",
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"status": "affected"
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},
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{
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"version": "7.50.1",
|
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"status": "affected"
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},
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{
|
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"version": "7.50.0",
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"status": "affected"
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},
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{
|
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"version": "7.49.1",
|
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"status": "affected"
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},
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{
|
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"version": "7.49.0",
|
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"status": "affected"
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},
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{
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"version": "7.48.0",
|
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"status": "affected"
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},
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|
{
|
|
"version": "7.47.1",
|
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"status": "affected"
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},
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{
|
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"version": "7.47.0",
|
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"status": "affected"
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},
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|
{
|
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"version": "7.46.0",
|
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"status": "affected"
|
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},
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|
{
|
|
"version": "7.45.0",
|
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"status": "affected"
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},
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{
|
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"version": "7.44.0",
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"status": "affected"
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},
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{
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"version": "7.43.0",
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"status": "affected"
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},
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{
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"version": "7.42.1",
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"status": "affected"
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},
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{
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"version": "7.42.0",
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"status": "affected"
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},
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{
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"version": "7.41.0",
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"status": "affected"
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},
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{
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"version": "7.40.0",
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"status": "affected"
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},
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{
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"version": "7.39.0",
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"status": "affected"
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},
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{
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"version": "7.38.0",
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"status": "affected"
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},
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{
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"version": "7.37.1",
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"status": "affected"
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},
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{
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"version": "7.37.0",
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"status": "affected"
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},
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{
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"version": "7.36.0",
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"status": "affected"
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},
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{
|
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"version": "7.35.0",
|
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"status": "affected"
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},
|
|
{
|
|
"version": "7.34.0",
|
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"status": "affected"
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},
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|
{
|
|
"version": "7.33.0",
|
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"status": "affected"
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},
|
|
{
|
|
"version": "7.32.0",
|
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"status": "affected"
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},
|
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{
|
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"version": "7.31.0",
|
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"status": "affected"
|
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},
|
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{
|
|
"version": "7.30.0",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.29.0",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.28.1",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.28.0",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.27.0",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.26.0",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.25.0",
|
|
"status": "affected"
|
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},
|
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{
|
|
"version": "7.24.0",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.23.1",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.23.0",
|
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"status": "affected"
|
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},
|
|
{
|
|
"version": "7.22.0",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.21.7",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.21.6",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.21.5",
|
|
"status": "affected"
|
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},
|
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{
|
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"version": "7.21.4",
|
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"status": "affected"
|
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},
|
|
{
|
|
"version": "7.21.3",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.21.2",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.21.1",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.21.0",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.20.1",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.20.0",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.19.7",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.19.6",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.19.5",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "7.19.4",
|
|
"status": "affected"
|
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},
|
|
{
|
|
"version": "7.19.3",
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{
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|
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},
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{
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"url": "https://curl.se/docs/CVE-2026-5545.html"
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{
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"url": "https://hackerone.com/reports/3642555"
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}
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|
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|
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],
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"modified": "2026-09-07T10:34:51.00Z",
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|
"id": "CWE-305",
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]
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}
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],
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|
"credits": [
|
|
{
|
|
"name": "Quac Tran and Ngoc Hieu",
|
|
"type": "finder"
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|
},
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|
{
|
|
"name": "Stefan Eissing",
|
|
"type": "remediation developer"
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|
}
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|
],
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|
"details": "libcurl might in some circumstances reuse the wrong connection when asked to\ndo an authenticated HTTP(S) request after a Negotiate-authenticated one, when\nboth use the same host.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials.\n\nAn application that first uses Negotiate authentication to a server with\n`user1:password1` and then does another operation to the same server asking\nfor any authentication method but for `user2:password2` (while the previous\nconnection is still alive) - the second request gets confused and wrongly\nreuses the same connection and sends the new request over that connection\nthinking it uses a mix of user1's and user2's credentials when it is in fact\nstill using the connection authenticated for user1..."
|
|
},
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"description": "Authentication Bypass by Primary Weakness",
|
|
"cweId": "CWE-305",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Quac Tran and Ngoc Hieu",
|
|
"type": "finder"
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"value": "Stefan Eissing",
|
|
"type": "remediation developer"
|
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}
|
|
],
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|
"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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},
|
|
"adp": [
|
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{
|
|
"references": [
|
|
{
|
|
"url": "https://hackerone.com/reports/3642555",
|
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"tags": [
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"exploit"
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]
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],
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"metrics": [
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{
|
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"cvssV3_1": {
|
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"scope": "UNCHANGED",
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"version": "3.1",
|
|
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|
|
"attackVector": "NETWORK",
|
|
"baseSeverity": "MEDIUM",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
|
|
"integrityImpact": "HIGH",
|
|
"userInteraction": "NONE",
|
|
"attackComplexity": "HIGH",
|
|
"availabilityImpact": "NONE",
|
|
"privilegesRequired": "NONE",
|
|
"confidentialityImpact": "LOW"
|
|
}
|
|
},
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-05-13T17:46:36.115262Z",
|
|
"id": "CVE-2026-5545",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-05-13T17:46:40.830Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |