CVE-2026-107696

high

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.

References

https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-infinite-loop-via-rtsp-redirect-handling-in-rtsp-c

https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/rtsp.c#L2225

https://github.com/FFmpeg/FFmpeg

https://gist.github.com/OxBat/648a0bd60c898f2ffb418e131ce26013

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95124

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24902

Details

Source: Mitre, NVD

Published: 2026-10-08

Updated: 2026-10-09

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium

CVSS v4

Base Score: 7.1

Vector: 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

Severity: High

EPSS

EPSS: 0.00325