CVE-2025-31947

Repeated LDAP login failures can lock an LDAP account

Published May 15, 2025 CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed
Description
Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to lockout LDAP users following repeated login failures, which allows attackers to lock external LDAP accounts through repeated login failures through Mattermost.

Remediation

Vendor Solution

Update Mattermost to versions 10.7.0, 10.6.2, 10.5.3, 10.4.5, 9.11.12 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-15150 Mattermost Fails to Lockout LDAP Users After Repeated Login Failures
Github GHSA Github GHSA GHSA-qgwx-rffp-6cx9 Mattermost Fails to Lockout LDAP Users After Repeated Login Failures
References
History
Type Values Removed Values Added
First Time appeared Mattermost mattermost Server
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost mattermost Server
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to lockout LDAP users following repeated login failures, which allows attackers to lock external LDAP accounts through repeated login failures through Mattermost.
Title Repeated LDAP login failures can lock an LDAP account
Weaknesses CWE-645
References
Metrics cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
May 15, 2025, 1:46 PM
Reserved
Apr 8, 2025, 11:14 AM
Status
Analyzed
Published
May 15, 2025, 11:15 AM
Modified
Jun 17, 2026, 9:11 AM