PT-2026-115516 · Mattermost · Mattermost

·

CVE-2026-19601

·

Published

2026-10-16

·

Updated

2026-10-16

CVSS v3.1

4.9

Medium

VectorAV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to invalidate the stored AD/LDAP bind password when other connection settings (such as the server address) are changed, which allows a System Console administrator to disclose the plaintext bind password to an attacker-controlled server via the Test Connection / diagnostics feature. Mattermost Advisory ID: MMSA-2026-00764

Fix

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-19601

Affected Products

Mattermost