CVE-2026-19601

Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, and 11.10.x

CVE-2026-19601 Disclosure of AD/LDAP bind password via Test Connection

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 ...