CVE-2026-107696

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.

Score

CVSS 4.0 7.1 High

Status

Analyzed - disclosure@vulncheck.com

Published

2026-10-08

Last modified

2026-10-14

Weaknesses

CWE-835

Affected products

• Ffmpeg (Ffmpeg)

References

• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24902
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/rtsp.c#L2225
• https://gist.github.com/OxBat/648a0bd60c898f2ffb418e131ce26013
• https://github.com/FFmpeg/FFmpeg
• https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-infinite-loop-via-rtsp-redirect-handling-in-rtsp-c