{"id":"CVE-2026-107697","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107697","generatedAt":"2026-10-28T03:58:49.554Z","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.","description":"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 whose child playlists use disallowed protocols or non-multimedia local files, making parse_playlist() open resources the HLS security policy should block.","published":"2026-10-08T18:17:26.000Z","lastModified":"2026-10-15T00:01:45.000Z","status":"Analyzed","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-693"],"affected":["ffmpeg/ffmpeg"],"epss":{"score":0.00319,"percentile":0.24774,"date":"2026-10-27","history":[{"date":"2026-10-09","score":0.00324,"percentile":0.23454}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T18:17:26.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-08T18:17:26.300Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://github.com/FFmpeg/FFmpeg","tags":["Product"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L834","tags":["Product"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/01044d04536e","tags":["Patch"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/191715f0232c","tags":["Patch"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/23602df9cd1b485c45ba6f533d3b85569de3f323","tags":["Patch"],"source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-hls-demuxer-security-check-bypass-via-parse-playlist","tags":["Patch","Third Party Advisory"],"source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107697","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}