CVE-2026-107697
MEDIUMCVSS 4.3Description
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.
Timeline
Published:October 8th, 2026 6:17 PM
Last modified:October 15th, 2026 12:01 AM
CVSS Scoring
CVSS v3: 4.3 (MEDIUM)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Software
From NVD CPE configuration data
Vendors
ffmpeg
Products
ffmpeg
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- https://github.com/FFmpeg/FFmpegProduct
- https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L834Product
- https://github.com/FFmpeg/FFmpeg/commit/01044d04536ePatch
- https://github.com/FFmpeg/FFmpeg/commit/191715f0232cPatch
- https://github.com/FFmpeg/FFmpeg/commit/23602df9cd1b485c45ba6f533d3b85569de3f323Patch
- https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-hls-demuxer-security-check-bypass-via-parse-playlistPatch
Source: NIST NVD · Data may lag official sources by up to one minute