CVE-2026-82041
UTMStack < 11.2.16 Missing Authorization via Command WebSocket
UTMStack UTMStack
CVSS
6.5MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.44%Chance of exploitation activity in the next 30 days, higher than 37% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 11.2.16UTMStackCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 1
- UTMStackaffected: all versions before 11.2.16CVE List