UTMStack up to 11.2.15 Command Processing UTMIncidentCommandWebsocket.processCommand improper authorization

Summaryinfo

A vulnerability classified as very critical has been found in UTMStack up to 11.2.15. This affects the function UTMIncidentCommandWebsocket.processCommand of the component Command Processing. Performing a manipulation results in improper authorization. This vulnerability was named CVE-2026-82041. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in UTMStack up to 11.2.15. It has been classified as very critical. This affects the function UTMIncidentCommandWebsocket.processCommand of the component Command Processing. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-82041 since 08/27/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/02/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 11.2.16 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• UTMStack

Version

• 11.2.0
• 11.2.1
• 11.2.2
• 11.2.3
• 11.2.4
• 11.2.5
• 11.2.6
• 11.2.7
• 11.2.8
• 11.2.9
• 11.2.10
• 11.2.11
• 11.2.12
• 11.2.13
• 11.2.14
• 11.2.15

Website

• Product: https://github.com/UTMStack/UTMStack/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion