CVE-2026-107697

Published: Oct 8, 2026Modified: Oct 15, 2026

5.3

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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Show more

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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

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.

Affected (1)

Products: Ffmpeg: Ffmpeg

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Ffmpeg Ffmpeg	version < 8.1.3

Related CWEs

Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

References (6)

https://github.com/FFmpeg/FFmpeg

Source: disclosure@vulncheck.com

Product

https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L834

Source: disclosure@vulncheck.com

Product

https://github.com/FFmpeg/FFmpeg/commit/01044d04536e

Source: disclosure@vulncheck.com

Patch

https://github.com/FFmpeg/FFmpeg/commit/191715f0232c

Source: disclosure@vulncheck.com

Patch

https://github.com/FFmpeg/FFmpeg/commit/23602df9cd1b485c45ba6f533d3b85569de3f323

Source: disclosure@vulncheck.com

Patch

https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-hls-demuxer-security-check-bypass-via-parse-playlist

Source: disclosure@vulncheck.com

PatchThird Party Advisory

Timeline

No history available yet.