{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-19552", "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22", "state": "PUBLISHED", "assignerShortName": "PSF", "dateReserved": "2026-08-11T15:22:01.993Z", "datePublished": "2026-11-09T14:15:31.799Z", "dateUpdated": "2026-11-09T21:04:58.458Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "modules": ["ssl"], "product": "CPython", "repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "versions": [{"lessThan": "3.16.0", "status": "affected", "version": "0", "versionType": "python"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "devdanzin (https://github.com/devdanzin)"}, {"lang": "en", "type": "analyst", "value": "Bhuvansh (https://github.com/BHUVANSH855)"}, {"lang": "en", "type": "analyst", "value": "B\u00e9n\u00e9dikt Tran (https://github.com/picnixz)"}, {"lang": "en", "type": "remediation developer", "value": "Brett Smith (https://github.com/brettcs)"}, {"lang": "en", "type": "remediation reviewer", "value": "Kirill Podoprigora (https://github.com/Eclips4)"}, {"lang": "en", "type": "remediation reviewer", "value": "Gregory P. Smith (https://github.com/gpshead)"}, {"lang": "en", "type": "remediation reviewer", "value": "Seth Larson (https://github.com/sethmlarson)"}, {"lang": "en", "type": "remediation developer", "value": "devdanzin (https://github.com/devdanzin)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"type": "text/html", "value": "When ca_certs parameter was supplied to ssl.get_server_certificate() function, the identity of the certificate is not checked."}], "value": "When ca_certs parameter was supplied to ssl.get_server_certificate() function, the identity of the certificate is not checked."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 0, "baseSeverity": "NONE", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "providerMetadata": {"orgId": "28c92f92-d60d-412d-b760-e73465c3df22", "shortName": "PSF", "dateUpdated": "2026-11-09T14:15:31.799Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/python/cpython/pull/161507"}, {"tags": ["issue-tracking"], "url": "https://github.com/python/cpython/issues/161503"}, {"tags": ["vendor-advisory"], "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/SXBD6BGHDBTGM4KSUMQEWYIQ5RO4BQ76/"}], "source": {"discovery": "UNKNOWN"}, "title": "ssl.get_server_certificate(addr, ca_certs=...) verifies the chain but never the identity"}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/11/09/25"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-11-09T21:04:58.458Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "modules": ["ssl"], "product": "CPython", "repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "versions": [{"lessThan": "3.16.0", "status": "affected", "version": "0", "versionType": "python"}]}], "source": "cna@python.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "When ca_certs parameter was supplied to ssl.get_server_certificate() function, the identity of the certificate is not checked."}], "id": "CVE-2026-19552", "lastModified": "2026-11-09T15:17:21.123", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 0.0, "baseSeverity": "NONE", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@python.org", "type": "Secondary"}]}, "published": "2026-11-09T15:17:21.017", "references": [{"source": "cna@python.org", "url": "https://github.com/python/cpython/issues/161503"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/pull/161507"}, {"source": "cna@python.org", "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/SXBD6BGHDBTGM4KSUMQEWYIQ5RO4BQ76/"}], "sourceIdentifier": "cna@python.org", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.16.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "CPython", "source": "cna", "vendor": "Python Software Foundation"}, "product": "cpython", "vendor": "python"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.16.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "CPython", "source": "cna", "vendor": "Python Software Foundation"}, "product": "cpython", "vendor": "python_software_foundation"}], "created": "2026-11-09T16:30:12.615112+00:00", "updated": "2026-11-09T16:35:20.412319+00:00", "vendors": ["python", "python$PRODUCT$cpython", "python_software_foundation", "python_software_foundation$PRODUCT$cpython"], "weaknesses": ["CWE-297"]}