{"id":"DEBIAN-CVE-2026-4224","details":"When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs.","modified":"2026-09-01T16:06:42.419441794Z","published":"2026-03-16T18:16:10.070Z","upstream":["CVE-2026-4224"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-4224"}],"affected":[{"package":{"name":"python3.11","ecosystem":"Debian:12","purl":"pkg:deb/debian/python3.11?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.11.2-6+deb12u8"}]}],"versions":["3.11.2-6","3.11.2-6+deb12u1","3.11.2-6+deb12u2","3.11.2-6+deb12u3","3.11.2-6+deb12u4","3.11.2-6+deb12u5","3.11.2-6+deb12u6","3.11.2-6+deb12u7"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4224.json"}},{"package":{"name":"python3.13","ecosystem":"Debian:13","purl":"pkg:deb/debian/python3.13?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.13.5-2+deb13u2"}]}],"versions":["3.13.5-2","3.13.5-2+deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4224.json"}},{"package":{"name":"python3.13","ecosystem":"Debian:14","purl":"pkg:deb/debian/python3.13?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.13.14-1"}]}],"versions":["3.13.11-1","3.13.12-1","3.13.5-2","3.13.6-1","3.13.7-1","3.13.8-1","3.13.9-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4224.json"}},{"package":{"name":"python3.14","ecosystem":"Debian:14","purl":"pkg:deb/debian/python3.14?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.14.3-4"}]}],"versions":["3.14.0-1","3.14.0-2","3.14.0-3","3.14.0-4","3.14.0-5","3.14.0~a7-1","3.14.0~b1-1","3.14.0~b2-1","3.14.0~b3-1","3.14.0~b4-1","3.14.0~rc1-1","3.14.0~rc2-1","3.14.0~rc3-1","3.14.2-1","3.14.3-1","3.14.3-2","3.14.3-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4224.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:N/A:H"}]}