{"id":"CVE-2026-107697","title":"FFmpeg before 8.1.3 contains a protection mechanism failure in the HLS demuxer that allows attackers to bypass protocol and allowed_extensions restrictions when opening child playlists","summary":"FFmpeg before 8.1.3 contains a protection mechanism failure in the HLS demuxer that allows attackers to bypass protocol and allowed_extensions restrictions when opening child playlists. Attackers can supply a crafted master playlist whos…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","cwe":["CWE-693"],"vendor":"FFmpeg","product":"FFmpeg","affected":["FFmpeg < 8.1.3"],"published":"2026-10-08","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:04:38.633","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107697","references":[{"url":"https://github.com/FFmpeg/FFmpeg","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L834","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/01044d04536e","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/191715f0232c","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/23602df9cd1b485c45ba6f533d3b85569de3f323","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-hls-demuxer-security-check-bypass-via-parse-playlist","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-08T17:56:11.735Z","slug":"CVE-2026-107697","body":"## Overview\n\nFFmpeg before 8.1.3 contains a protection mechanism failure in the HLS demuxer that allows attackers to bypass protocol and allowed_extensions restrictions when opening child playlists. Attackers can supply a crafted master playlist whose child playlists use disallowed protocols or non-multimedia local files, making parse_playlist() open resources the HLS security policy should block.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}