CVE-2026-82041 UTMStack < 11.2.16 Missing Authorization via Command WebSocket
Authenticated users can execute arbitrary OS commands on monitored endpoints due to missing authorization checks in the command WebSocket handler.
- 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-2026-82041?
CVE-2026-82041 is a medium-severity missing authorization vulnerability in UTMStack, published on 2 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
UTMStack before 11.2.16 contains a missing authorization vulnerability in UTMIncidentCommandWebsocket.processCommand(), the handler mapped to the /command/{hostname} STOMP destination, where no role check or command allowlist is applied before forwarding supplied commands. Any authenticated user, regardless of role, can send arbitrary operating-system commands over gRPC to any connected agent, resulting in command execution on monitored endpoints where agent processes commonly run as root or SYSTEM.
Weakness: CWE-862
Which versions are affected by CVE-2026-82041?
How do I fix CVE-2026-82041?
No fix has been published for CVE-2026-82041 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-2026-82041 being exploited?
There is no known exploitation of CVE-2026-82041 in the wild and no public exploit code.
Sources
Also known as GHSA-q995-ggc5-8fmx.