{"id":"DEBIAN-CVE-2026-8177","details":"XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences.  A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory.  Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.","modified":"2026-09-19T22:47:37.706384144Z","published":"2026-05-10T21:16:30.003Z","upstream":["CVE-2026-8177"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-8177"}],"affected":[{"package":{"name":"libxml-libxml-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libxml-libxml-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0207+dfsg+really+2.0134-1+deb12u1"}]}],"versions":["2.0207+dfsg+really+2.0134-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8177.json"}},{"package":{"name":"libxml-libxml-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libxml-libxml-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0207+dfsg+really+2.0134-5+deb13u1"}]}],"versions":["2.0207+dfsg+really+2.0134-5"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8177.json"}},{"package":{"name":"libxml-libxml-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libxml-libxml-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0207+dfsg+really+2.0134-8"}]}],"versions":["2.0207+dfsg+really+2.0134-5","2.0207+dfsg+really+2.0134-6","2.0207+dfsg+really+2.0134-7"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8177.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"}]}