Vulnerability · Published Oct 8, 2026 · Assigned by VulnCheck
CVE-2026-107696FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handling in rtsp.c
Medium 6.5
In plain English
A medium-severity infinite loop in FFmpeg from FFmpeg. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 70.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
FFmpeg through 9.0.2 contains an infinite loop vulnerability in ff_rtsp_connect() in libavformat/rtsp.c that follows RTSP 3xx redirects without any redirect limit. Attackers controlling an RTSP server can answer every request with a 302 redirect to itself or another server, causing endless reconnects that saturate a CPU core.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | ffmpeg | no fix listed | DEBIAN-CVE-2026-107696 |
| Debian:13 | ffmpeg | no fix listed | DEBIAN-CVE-2026-107696 |
| Debian:14 | ffmpeg | no fix listed | DEBIAN-CVE-2026-107696 |
| Ubuntu:26.10 | ffmpeg | no fix listed | UBUNTU-CVE-2026-107696 |
Affected products (as reported)
Weakness: CWE-835 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24902 patch
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/rtsp.c#L2225 technical-description
- https://gist.github.com/OxBat/648a0bd60c898f2ffb418e131ce26013 exploit
- https://github.com/FFmpeg/FFmpeg product
- VulnCheck Advisory: FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handling in rtsp.c third-party-advisory