Infinite Loop Vulnerability in FFmpeg's RTSP Redirect Handling
CVE-2026-107696

7.1HIGH

Key Information:

Vendor

Ffmpeg

Status
Ffmpeg
Vendor
CVE Published:
8 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-107696?

FFmpeg versions up to 9.0.2 have a vulnerability in the RTSP redirect handling within the ff_rtsp_connect() function in libavformat/rtsp.c. The flaw allows attackers with control over the RTSP server to send continuous 302 redirects to the same or a different server. This leads to an infinite loop of reconnections, causing a single CPU core to become saturated and may result in performance degradation or service denial.

Affected Version(s)

FFmpeg 0 <= 9.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-107696 - Proof of Concept

References

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24902
patch
https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/...
technical-description
https://gist.github.com/OxBat/648a0bd60c898f2ffb418e131ce...
exploit

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

BapToutatis
.