CVE-2026-107696
FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handling in rtsp.c
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 8, 2026
- Updated
- Oct 9, 2026
- Reserved
- Oct 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
Affected Products
| Product | Versions |
|---|---|
FFmpegFFmpeg |
|
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24902patch
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/rtsp.c#L2225technical-description
- https://gist.github.com/OxBat/648a0bd60c898f2ffb418e131ce26013exploit
- https://github.com/FFmpeg/FFmpegproduct
- VulnCheck Advisory: FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handling in rtsp.cthird-party-advisory
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