{"id":"RHSA-2026:4746","summary":"Red Hat Security Advisory: python3.12 security update","modified":"2026-04-03T10:08:43Z","published":"2026-03-18T11:20:20Z","upstream":["CVE-2025-15366","CVE-2025-15367","CVE-2026-1299"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:4746"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/#moderate"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2431368"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2431373"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2432437"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_4746.json"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-15366"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2025-15366"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-15366"},{"type":"ARTICLE","url":"https://github.com/python/cpython/issues/143921"},{"type":"ARTICLE","url":"https://github.com/python/cpython/pull/143922"},{"type":"ARTICLE","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/DD7C7JZJYTBXMDOWKCEIEBJLBRU64OMR/"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-15367"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2025-15367"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-15367"},{"type":"ARTICLE","url":"https://github.com/python/cpython/issues/143923"},{"type":"ARTICLE","url":"https://github.com/python/cpython/pull/143924"},{"type":"ARTICLE","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/CBFBOWVGGUJFSGITQCCBZS4GEYYZ7ZNE/"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-1299"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-1299"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1299"},{"type":"ARTICLE","url":"https://cve.org/CVERecord?id=CVE-2024-6923"},{"type":"ARTICLE","url":"https://github.com/python/cpython/commit/052e55e7d44718fe46cbba0ca995cb8fcc359413"},{"type":"ARTICLE","url":"https://github.com/python/cpython/issues/144125"},{"type":"ARTICLE","url":"https://github.com/python/cpython/pull/144126"},{"type":"ARTICLE","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/6ZZULGALJTITEAGEXLDJE2C6FORDXPBT/"}],"affected":[{"package":{"name":"python3.12","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-debug","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-debuginfo","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-debugsource","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12-debugsource"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-devel","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-idle","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12-idle"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-libs","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12-libs"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-test","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12-test"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-tkinter","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/python3.12-tkinter"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-debug","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-debuginfo","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-debugsource","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12-debugsource"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-devel","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-idle","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12-idle"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-libs","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12-libs"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-test","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12-test"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}},{"package":{"name":"python3.12-tkinter","ecosystem":"Red Hat:rhel_eus:9.6::crb","purl":"pkg:rpm/redhat/python3.12-tkinter"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.12.9-1.el9_6.6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4746.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N"}]}