← Back

CVE-2026-12284

nvd nist
Published: Sep 17, 2026Modified: Oct 13, 2026

JSON object

Loading...
3.7
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Exploitability: 2.2 / Impact: 1.4
Source: responsibledisclosure@mattermost.com (Secondary)

Description

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

Affected (1)

Mattermost
1 product
Mattermost Desktop
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Mattermost Desktop
6.2.0 ≤ version < 6.2.3

Related CWEs

CWE-346
Origin Validation Error
The product does not properly verify that the source of data or communication is valid.

References (1)

Source: responsibledisclosure@mattermost.com
Vendor Advisory

Timeline

No history available yet.