455 lines
18 KiB
JSON
455 lines
18 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-2026-12064",
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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": "2026-06-12T07:23:29.455Z",
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"datePublished": "2026-07-03T06:13:55.302Z",
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"dateUpdated": "2026-09-15T06:02:44.283Z"
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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": "2026-09-15T06:02:44.283Z"
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},
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"title": "proto-default skips SSH verification",
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"descriptions": [
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{
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"lang": "en",
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"value": "When a user invokes curl using a schemeless URL combined with\n`--proto-default` sftp (or scp), a disconnect occurs between the tool layer\nand libcurl. The tool layer incorrectly infers the URL scheme, which\nerroneously bypasses the initialization of critical SSH security options like\nCURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 and CURLOPT_SSH_KNOWNHOSTS. Conversely, the\nlibcurl runtime successfully honors CURLOPT_DEFAULT_PROTOCOL and establishes\nthe connection via SFTP/SCP as specified. Because the tool layer skipped the\nsecurity configuration, these SSH host verification options are silently\nomitted, causing curl to connect to an unverified SSH remote host without\nthrowing an error."
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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": "7.81.0",
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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": "8.20.1"
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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": "18270893abdb19f0ca170c118f8a2847dbd304be",
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"status": "affected",
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"versionType": "git",
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"lessThan": "ab3bb8cd8be8f9d4acb97da0418abc279182041e"
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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": "8.20.0",
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"status": "affected"
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},
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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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"defaultStatus": "unaffected"
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}
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],
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"references": [
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{
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"url": "https://curl.se/docs/CVE-2026-12064.json"
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},
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{
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"url": "https://curl.se/docs/CVE-2026-12064.html"
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},
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{
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"url": "https://hackerone.com/reports/3797526"
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}
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],
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"x_osv": {
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"schema_version": "1.5.0",
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"id": "CURL-CVE-2026-12064",
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"aliases": [
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"CVE-2026-12064"
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],
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"summary": "proto-default skips SSH verification",
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"modified": "2026-09-07T10:34:51.00Z",
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"database_specific": {
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"package": "curl",
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"affects": "tool",
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"URL": "https://curl.se/docs/CVE-2026-12064.json",
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"www": "https://curl.se/docs/CVE-2026-12064.html",
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"issue": "https://hackerone.com/reports/3797526",
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"CWE": {
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"id": "CWE-297",
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"desc": "Improper Validation of Certificate with Host Mismatch"
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},
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"last_affected": "8.20.0",
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"severity": "Low"
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},
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"published": "2026-06-24T08:00:00.00Z",
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"affected": [
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{
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"ranges": [
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{
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"type": "SEMVER",
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"events": [
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{
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"introduced": "7.81.0"
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},
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{
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"fixed": "8.14.2"
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},
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{
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"introduced": "8.15.0"
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},
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{
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"fixed": "8.16.1"
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},
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{
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"introduced": "8.17.0"
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},
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{
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"fixed": "8.20.1"
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}
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]
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},
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{
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"type": "GIT",
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"repo": "https://github.com/curl/curl.git",
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"events": [
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{
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"introduced": "18270893abdb19f0ca170c118f8a2847dbd304be"
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},
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{
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"fixed": "ab3bb8cd8be8f9d4acb97da0418abc279182041e"
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}
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]
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}
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],
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"versions": [
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"8.20.0",
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"8.19.0",
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"8.18.0",
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"8.17.0",
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"8.16.0",
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"8.15.0",
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"8.14.1",
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"8.14.0",
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"8.13.0",
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"8.12.1",
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"8.12.0",
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"8.11.1",
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"8.11.0",
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"8.10.1",
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"8.10.0",
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"8.9.1",
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"8.9.0",
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"8.8.0",
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"8.7.1",
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"8.7.0",
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"8.6.0",
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"8.5.0",
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"8.4.0",
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"8.3.0",
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"8.2.1",
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"8.2.0",
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"8.1.2",
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"8.1.1",
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"8.1.0",
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"8.0.1",
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"8.0.0",
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"7.88.1",
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"7.88.0",
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"7.87.0",
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"7.86.0",
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"7.85.0",
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"7.84.0",
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"7.83.1",
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"7.83.0",
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"7.82.0",
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"7.81.0"
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]
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}
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],
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"credits": [
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{
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"name": "alienowo on hackerone (AntAISecurityLab)",
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"type": "finder"
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},
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{
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"name": "Daniel Stenberg",
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"type": "remediation developer"
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}
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],
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"details": "When a user invokes curl using a schemeless URL combined with\n`--proto-default` sftp (or scp), a disconnect occurs between the tool layer\nand libcurl. The tool layer incorrectly infers the URL scheme, which\nerroneously bypasses the initialization of critical SSH security options like\nCURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 and CURLOPT_SSH_KNOWNHOSTS. Conversely, the\nlibcurl runtime successfully honors CURLOPT_DEFAULT_PROTOCOL and establishes\nthe connection via SFTP/SCP as specified. Because the tool layer skipped the\nsecurity configuration, these SSH host verification options are silently\nomitted, causing curl to connect to an unverified SSH remote host without\nthrowing an error."
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},
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Improper Validation of Certificate with Host Mismatch",
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"cweId": "CWE-297",
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"type": "CWE"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "alienowo on hackerone (AntAISecurityLab)",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Daniel Stenberg",
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"type": "remediation developer"
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}
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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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},
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"adp": [
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{
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"references": [
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{
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"url": "https://hackerone.com/reports/3797526",
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"tags": [
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"exploit"
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]
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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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"baseScore": 7.5,
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"attackVector": "NETWORK",
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "NONE",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-07-06T18:19:34.951461Z",
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"id": "CVE-2026-12064",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-07-06T18:21:00.665Z"
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}
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}
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]
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}
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} |