{"id":"RHSA-2026:72448","summary":"Red Hat Security Advisory: expat security update","modified":"2026-10-01T10:20:34Z","published":"2026-09-29T10:18:21Z","upstream":["CVE-2026-66046","CVE-2026-93990"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:72448"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/#important"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2517901"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2538967"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_72448.json"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-66046"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-66046"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66046"},{"type":"ARTICLE","url":"https://github.com/libexpat/libexpat/pull/1321"},{"type":"ARTICLE","url":"https://www.vulncheck.com/advisories/expat-denial-of-service-via-storeatts-quadratic-complexity"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-93990"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-93990"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93990"},{"type":"ARTICLE","url":"https://github.com/libexpat/libexpat"},{"type":"ARTICLE","url":"https://github.com/libexpat/libexpat/commit/ff6e1d7e750bbe245178f51a47a965dc8342861a"},{"type":"ARTICLE","url":"https://github.com/libexpat/libexpat/pull/1282"},{"type":"ARTICLE","url":"https://www.vulncheck.com/advisories/expat-through-2.8.4-malformed-utf-16-acceptance-via-unchecked-surrogate"}],"affected":[{"package":{"name":"expat","ecosystem":"Red Hat:enterprise_linux:8::baseos","purl":"pkg:rpm/redhat/expat"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.5.0-4.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:72448.json"}},{"package":{"name":"expat-debuginfo","ecosystem":"Red Hat:enterprise_linux:8::baseos","purl":"pkg:rpm/redhat/expat-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.5.0-4.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:72448.json"}},{"package":{"name":"expat-debugsource","ecosystem":"Red Hat:enterprise_linux:8::baseos","purl":"pkg:rpm/redhat/expat-debugsource"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.5.0-4.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:72448.json"}},{"package":{"name":"expat-devel","ecosystem":"Red Hat:enterprise_linux:8::baseos","purl":"pkg:rpm/redhat/expat-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.5.0-4.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:72448.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}