{"id":"CVE-2026-86142","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-86142","summary":null,"details":"In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.","published":"2026-09-05T04:29:33.323Z","modified":"2026-09-15T08:05:11.411167Z","cvss":{"score":6.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/GNOME/libxml2/commit/6b3a736c0edc74ceec3d82f5252499d7911b3a58","label":"GNOME/libxml2@6b3a736"},"references":[{"type":"WEB","url":"https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"},{"type":"WEB","url":"https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1113"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86142.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86142"},{"type":"FIX","url":"https://github.com/GNOME/libxml2/commit/6b3a736c0edc74ceec3d82f5252499d7911b3a58"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-15T08:05:11.411167Z"}}