{"affected":[{"defaultStatus":"unaffected","product":"CPython","source":"CNA: PSF","vendor":"Python Software Foundation","versions":[{"lessThan":"3.16.0","status":"affected","version":"0","versionType":"python"}]}],"cveId":"CVE-2026-19552","cwes":[],"description":"When ca_certs parameter was supplied to ssl.get_server_certificate() function, the identity of the certificate is not checked.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":0,"severity":"none","source":"CNA: PSF","vector":"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"},{"score":0,"severity":"none","source":"NVD: cna@python.org","vector":"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"}],"modifiedAt":1794270204944,"publishedAt":1794233731799,"references":[{"source":"CNA: PSF","tags":["patch"],"url":"https://github.com/python/cpython/pull/161507"},{"source":"CNA: PSF","tags":["issue-tracking"],"url":"https://github.com/python/cpython/issues/161503"},{"source":"CNA: PSF","tags":["vendor-advisory"],"url":"https://mail.python.org/archives/list/security-announce@python.org/thread/SXBD6BGHDBTGM4KSUMQEWYIQ5RO4BQ76/"},{"source":"CNA: PSF","tags":["patch"],"url":"https://github.com/python/cpython/commit/8dde46eaa6baf5f027a7234845b20d50b509624e"},{"source":"ADP: CVE","tags":[],"url":"http://www.openwall.com/lists/oss-security/2026/11/09/25"},{"source":"cna@python.org","tags":[],"url":"https://github.com/python/cpython/issues/161503"},{"source":"cna@python.org","tags":[],"url":"https://github.com/python/cpython/pull/161507"},{"source":"cna@python.org","tags":[],"url":"https://mail.python.org/archives/list/security-announce@python.org/thread/SXBD6BGHDBTGM4KSUMQEWYIQ5RO4BQ76/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"http://www.openwall.com/lists/oss-security/2026/11/09/25"}],"remediation":[{"kind":"fix","source":"CNA: PSF","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/python/cpython/pull/161507"},{"kind":"fix","source":"CNA: PSF","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/python/cpython/commit/8dde46eaa6baf5f027a7234845b20d50b509624e"}],"revision":"5f220df99ef43f178e0b3967c0711d111f657f2b8656e5c93ecca800984be5c7","sources":[{"modifiedAt":1794270204944,"name":"CNA: PSF","retrievedAt":1794272970132,"url":"https://www.cve.org/CVERecord?id=CVE-2026-19552"},{"modifiedAt":1794262731393,"name":"NVD","retrievedAt":1794269941465,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19552"}],"ssvc":null,"status":"published","title":"ssl.get_server_certificate(addr, ca_certs=...) verifies the chain but never the identity","updatedAt":1794272970132}