CVE-2026-84187 AVideo on_publish.php Missing Authentication Check via RTMP Callback
Unauthenticated attackers can cancel scheduled live broadcasts by sending crafted requests to an unguarded RTMP callback endpoint in AVideo.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84187?
CVE-2026-84187 is a high-severity missing authorization vulnerability in WWBN AVideo, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
AVideo contains a missing authentication vulnerability in plugin/Live/on_publish.php that allows unauthenticated attackers to mark arbitrary scheduled broadcasts as failed by sending crafted POST requests with schedule identifiers. Attackers can exploit the unguarded RTMP callback endpoint to modify scheduled broadcast status fields by supplying fabricated stream keys matching the pattern -ps-<N>, silently canceling any scheduled live broadcast without credentials or authorization.
Weakness: CWE-284
Which versions are affected by CVE-2026-84187?
How do I fix CVE-2026-84187?
No fix has been published for CVE-2026-84187 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-84187 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84187 exists.
Sources
Also known as GHSA-m7p6-5q89-gw3f, GHSA-v395-2xmq-cg23.