LOW 3.7 NVD

CVE-2026-12284

Mattermost Desktop App versions <=6.2 6.2.2.0 fails to validate the IPC sender in the leaveCall handler which allows a malicious or compromised Mattermost serve

Mattermost Desktop App versions <=6.2 6.2.2.0 fails to validate the IPC sender in the leaveCall handler which allows a malicious or compromised Mattermost server (or a user with script access to a connected server view) to disconnect an active call belonging to a different connected server via the desktopAPI.leaveCall IPC message. Mattermost Advisory ID: MMSA-2026-00699

References

https://mattermost.com/security-updates

Published: 2026-09-17 · Source: NVD · Feed updated: 2026-09-17

This low severity vulnerability with a CVSS score of 3.7 was published on 2026-09-17 via NVD.

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