CVE-2026-91967 AVideo through 29.0 Blind SSRF via getHeaderContentTypeFromURL
Authenticated users can exploit blind SSRF in AVideo to probe internal hosts via crafted video links, potentially exposing internal network information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-91967?
CVE-2026-91967 is a medium-severity server-side request forgery vulnerability in WWBN AVideo, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
AVideo through 29.0 contains a blind server-side request forgery vulnerability in the getHeaderContentTypeFromURL function that issues get_headers() calls guarded only by format validation. Authenticated users with canUpload permission can store attacker-chosen URLs as video links, triggering vulnerable function execution on every video watch page render to probe internal hosts using content-type oracles and timing-based detection.
Weakness: CWE-918
Which versions are affected by CVE-2026-91967?
How do I fix CVE-2026-91967?
No fix has been published for CVE-2026-91967 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-91967 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91967 exists.
Sources
Also known as GHSA-c7vx-mcw6-m8m4, GHSA-vjgr-5x63-cq96.