343 lines
14 KiB
JSON
343 lines
14 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-2026-19445",
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"assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
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"state": "PUBLISHED",
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"assignerShortName": "PSF",
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"dateReserved": "2026-08-10T13:31:21.724Z",
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"datePublished": "2026-09-30T16:16:04.923Z",
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"dateUpdated": "2026-11-10T12:40:55.732Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"modules": [
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"ssl"
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],
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"product": "CPython",
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"repo": "https://github.com/python/cpython",
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"vendor": "Python Software Foundation",
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"versions": [
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{
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"version": "0",
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"lessThan": "3.10.22",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.11.0",
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"lessThan": "3.11.17",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.12.0",
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"lessThan": "3.12.15",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.13.0",
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"lessThan": "3.13.16",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.14.0",
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"lessThan": "3.14.8",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.15.0a1",
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"lessThan": "3.15.0rc3",
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"status": "affected",
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"versionType": "python"
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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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"type": "reporter",
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"value": "Gregory P. Smith (https://github.com/gpshead)"
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},
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{
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"lang": "en",
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"type": "coordinator",
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"value": "Seth Larson (https://github.com/sethmlarson)"
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},
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{
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"lang": "en",
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"type": "remediation reviewer",
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"value": "Bénédikt Tran (https://github.com/picnixz)"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"type": "text/html",
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"value": "<p>A remote, unauthenticated TLS client can make a server crash or call\nthrough a freed pointer if its sni_callback assigns a different context to\nSSLSocket.context (the documented way to select a certificate per server\nname) and nothing else keeps the original ssl.SSLContext alive. Typical\ncases are servers that create an SSLContext per connection or replace it\nwhile connections are open; servers that wrap their listening socket with\nit are not affected.</p>\n<p>Mitigation: keep a reference to every SSLContext that sets sni_callback for\nthe lifetime of the server. TLS clients are not affected.</p>"
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}
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],
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"value": "A remote, unauthenticated TLS client can make a server crash or call\nthrough a freed pointer if its sni_callback assigns a different context to\nSSLSocket.context (the documented way to select a certificate per server\nname) and nothing else keeps the original ssl.SSLContext alive. Typical\ncases are servers that create an SSLContext per connection or replace it\nwhile connections are open; servers that wrap their listening socket with\nit are not affected.\n\n\nMitigation: keep a reference to every SSLContext that sets sni_callback for\nthe lifetime of the server. TLS clients are not affected."
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "HIGH",
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"attackRequirements": "PRESENT",
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"attackVector": "NETWORK",
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"baseScore": 9.2,
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"baseSeverity": "CRITICAL",
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"exploitMaturity": "NOT_DEFINED",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "LOW",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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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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"cweId": "CWE-416",
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"description": "CWE-416",
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"lang": "en",
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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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"providerMetadata": {
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"orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
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"shortName": "PSF",
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"dateUpdated": "2026-10-03T00:36:46.398Z"
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},
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"references": [
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/pull/158504"
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},
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/QMQIUQB6WGGC3MI7I3WKQXOYOBDSPPS3/"
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},
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{
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"tags": [
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"issue-tracking"
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],
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"url": "https://github.com/python/cpython/issues/156293"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/34a53dce8174da2fceb12fe084a4def02a10053d"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/46133cd57d309652139ada74014aca7665ac552b"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/63fab143d94cafae71850831acfb52041ba44af7"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/cd7e51e7d4563866fbaa1e2521ae69b45daf3698"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/d8717ed01717a9641686e6e6f83f0ab8af235e2c"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/b12968cefe69ca1dcb8606c832ff73ee7dbf4ba8"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/ec44b5a3258cbda947d5e07242ee562ed05ef24b"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"title": "Use-after-free of a server-side SSLContext when sni_callback switches contexts",
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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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"title": "CVE Program Container",
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"references": [
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{
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"url": "http://www.openwall.com/lists/oss-security/2026/09/30/17"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2026-09-30T18:09:39.735Z"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-11-09T16:30:44.312598Z",
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"id": "CVE-2026-19445",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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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": "2026-11-09T16:30:51.966Z"
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}
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},
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{
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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-11-10T12:40:55.732Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
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"versions": [
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{
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"status": "affected",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"references": [
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
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}
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]
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}
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]
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}
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} |