CVE-2026-7184

MEDIUM

Mattermost Remote Cluster PATCH API Leaks Authentication Tokens

Title source: cna
STIX 2.1

Description

Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15 fail to sanitize the Remote Cluster API response on PATCH operations, which allows authenticated users with the {{manage_secure_connections}} permission to obtain remote cluster authentication tokens via a PATCH request to the remote cluster endpoint.. Mattermost Advisory ID: MMSA-2026-00662

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory
MMSA-2026-00662
https://mattermost.com/security-updates

Scores

CVSS v3 6.5
EPSS 0.0025
EPSS Percentile 16.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-201
Status published
Products (7)
Mattermost/Mattermost 10.11.0 - 10.11.15
Mattermost/Mattermost 10.11.17
Mattermost/Mattermost 11.5.0 - 11.5.4
Mattermost/Mattermost 11.5.5
Mattermost/Mattermost 11.6.0 - 11.6.1
Mattermost/Mattermost 11.6.2
Mattermost/Mattermost 11.7.0
Published Jun 12, 2026
Tracked Since Jun 12, 2026