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CVE-2026-107696— FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handling in rtsp.c

Quick assessment

Affected
FFmpeg FFmpeg
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FFmpeg 9.0.2 及之前版本在 libavformat/rtsp.c 的 ff_rtsp_connect() 函数中存在无限循环漏洞，该函数在处理 RTSP 3xx 重定向时未设置重定向次数限制。攻击者若控制 RTSP 服务器，可在每次请求中返回指向自身或另一台服务器的 302 重定向响应，从而导致反复重连，最终耗尽一个 CPU 核心资源。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
FFmpeg FFmpeg ≤ 9.0.2 affected
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I. Basic Information for CVE-2026-107696

Vulnerability Information
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Vulnerability Title
FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handling in rtsp.c
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FFmpeg FFmpeg 0 ~ 9.0.2 -

II. Public POCs for CVE-2026-107696

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III. Intelligence Information for CVE-2026-107696

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Other References for CVE-2026-107696 (4)

Same Patch Batch · FFmpeg · 2026-10-08 · 9 CVEs total

CVE-2026-107695 6.5 MEDIUM FFmpeg before 8.1.3 HLS Demuxer Infinite Loop via Self-Referencing Playlist
CVE-2026-107675 5.9 MEDIUM FFmpeg through 9.0.2 Missing SSH Host Key Verification in sftp Protocol
CVE-2026-107698 5.4 MEDIUM FFmpeg before 7.1.4 and 8.0.2 SSRF via RTSP Redirect Handling
CVE-2026-107660 4.8 MEDIUM FFmpeg before 8.1.3 and 9.x before 9.0.2 mbedTLS Hostname Verification Bypass for IP Hosts
CVE-2026-107677 4.7 MEDIUM FFmpeg through 9.0.2 DASH Demuxer Infinite Loop via Empty SegmentTemplate Media
CVE-2026-107678 4.7 MEDIUM FFmpeg through 9.0.2 Stack Exhaustion via Recursive Free of pssh Boxes
CVE-2026-107697 4.3 MEDIUM FFmpeg before 8.1.3 HLS Demuxer Security Check Bypass via parse_playlist()
CVE-2026-107676 3.3 LOW FFmpeg through 9.0.2 Uninitialized Memory Disclosure via HDR10+ Metadata Serializer

IV. Related Vulnerabilities

Same product: FFmpeg
Same vendor: FFmpeg
Same weakness: CWE-835

V. Comments for CVE-2026-107696

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