{"id":"RHSA-2026:4140","summary":"Red Hat Security Advisory: python-pyasn1 security update","modified":"2026-03-25T10:13:46Z","published":"2026-03-10T10:08:48Z","upstream":["CVE-2026-23490"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:4140"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/#important"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2430472"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_4140.json"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-23490"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-23490"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23490"},{"type":"ARTICLE","url":"https://github.com/pyasn1/pyasn1/commit/3908f144229eed4df24bd569d16e5991ace44970"},{"type":"ARTICLE","url":"https://github.com/pyasn1/pyasn1/releases/tag/v0.6.2"},{"type":"ARTICLE","url":"https://github.com/pyasn1/pyasn1/security/advisories/GHSA-63vm-454h-vhhq"}],"affected":[{"package":{"name":"python-pyasn1","ecosystem":"Red Hat:rhel_e4s:9.0::appstream","purl":"pkg:rpm/redhat/python-pyasn1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.4.8-6.el9_0.1"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4140.json"}},{"package":{"name":"python3-pyasn1","ecosystem":"Red Hat:rhel_e4s:9.0::appstream","purl":"pkg:rpm/redhat/python3-pyasn1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.4.8-6.el9_0.1"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4140.json"}},{"package":{"name":"python3-pyasn1-modules","ecosystem":"Red Hat:rhel_e4s:9.0::appstream","purl":"pkg:rpm/redhat/python3-pyasn1-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.4.8-6.el9_0.1"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:4140.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}