CVE-2026-107695 FFmpeg before 8.1.3 HLS Demuxer Infinite Loop via Self-Referencing Playlist
Remote attackers can cause denial of service in FFmpeg by tricking users into opening a crafted self-referencing HLS playlist, leading to infinite loops and resource exhaustion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-107695?
CVE-2026-107695 is a high-severity denial of service vulnerability in Ffmpeg Ffmpeg, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
FFmpeg before 8.1.3 contains an infinite loop vulnerability in the HLS demuxer that allows remote attackers to cause denial of service because parse_playlist() accepts Master Playlist tags inside Media Playlists. Attackers can trick victims into opening a crafted self-referencing playlist that endlessly adds variants in hls_read_header(), causing unbounded CPU and I/O consumption.
Weakness: CWE-835
Which versions are affected by CVE-2026-107695?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2026-107695?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-107695 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107695 exists.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as DEBIAN-CVE-2026-107695, ECHO-477e-8137-8531, GHSA-wrmh-p2hh-7cf6, MINI-94gx-m9vp-87qj, UBUNTU-CVE-2026-107695.