{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"libxml2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5NW0X2WBHNWXDHZ3Y2MNBWF","modified_at":"2026-10-01T03:03:43.105788943Z","published_at":"2026-09-05T05:17:13.270Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-86143","https://security-tracker.debian.org/tracker/CVE-2026-86143"],"severity":{"label":"high","score":7.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-86143#Debian:13/libxml2","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-86143"}],"summary":"In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write callbacks, aka a lack of a check for integer overflow before calling"}