---
id: CVE-2026-82041
title: >-
  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 …
summary: >-
  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 …
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-862
vendor: UTMStack
product: UTMStack
affected:
  - UTMStack < 11.2.16
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T21:16:56.497'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82041'
references:
  - url: 'https://github.com/UTMStack/UTMStack/releases/tag/v11.2.16'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/utmstack/UTMStack/commit/4e7a727c3b8d8e2ad020d3b4f982a6d085dbecdd
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/utmstack-missing-authorization-via-command-websocket
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-02T22:33:09.847Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.