{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"corosync","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":[],"id":"tcs_01M5NVW03VC9CTPBZ12W51ESAE","modified_at":"2026-10-23T18:05:46.410735313Z","published_at":"2026-09-04T09:17:11.357Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-81665","https://security-tracker.debian.org/tracker/CVE-2026-81665"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-81665","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-81665"}],"summary":"A heap-based buffer overflow was found in Corosync's Totem Process Group (totempg) message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a ru"}