https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-09-28T09:22:23.275856+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/cve-2026-12284 CVE-2026-12284 — Mattermost Desktop App Missing IPC Sender Validation in Calls Leave Handler 2026-09-28T09:22:23.285581+00:00

Affected: Mattermost

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