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Critical · 9.9 CVE-2026-82041 EUVD-2026-91796GHSA-q995-ggc5-8fmx

UTMStack < 11.2.16 Missing Authorization via Command WebSocket

Published Oct 2, 2026 · Updated Oct 5, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
UTMStack UTMStack < 11.2.16 11.2.16

References