{"action":"Upgrade gstreamer to 1.18.4-r0 or later.","affected":[{"fixed":"1.18.4-r0","introduced":"0.10.0"}],"component":"gstreamer","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.21","exploited":false,"fixed_versions":["1.18.4-r0"],"id":"tcs_01M5ND9N717NPV0KTY8JDA0GD2","modified_at":"2026-10-23T17:17:56.195260860Z","published_at":"2021-04-19T21:15:13.113Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-3497","https://security.alpinelinux.org/vuln/CVE-2021-3497"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-3497#Alpine:v3.21/gstreamer","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-3497"}],"summary":"GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files."}