CVE-2026-9602 — Mattermost Desktop App crashes when malformed arguments are provided to some exposed IPC methods
Mattermost Desktop App versions <=6.2 6.0.2 5.6.13.0 fail to validate payloads sent from the Mattermost Web App to the Desktop App which allows a malicious server owner to crash…
Published: 2026-07-17 · CVSS: 5.7 · CVSS 3.1
Mattermost Desktop App versions <=6.2 6.0.2 5.6.13.0 fail to validate payloads sent from the Mattermost Web App to the Desktop App which allows a malicious server owner to crash the Mattermost Desktop App via changing the payload of a method to a malformed one. Mattermost Advisory ID: MMSA-2026-00678
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7