Mattermost versions 10.1.x <= 10.1.2, 10.0.x <= 10.0.2, 9.11.x <= 9.11.4, and 9.5.x <= 9.5.12 fail to prevent concurrently checking and updating the failed login attempts. which allows an attacker to bypass of "Max failed attempts" restriction and send a big number of login attempts before being blocked via simultaneously sending multiple login requests
Advisories
Source ID Title
EUVD EUVD EUVD-2024-3530 Mattermost versions 10.1.x <= 10.1.2, 10.0.x <= 10.0.2, 9.11.x <= 9.11.4, and 9.5.x <= 9.5.12 fail to prevent concurrently checking and updating the failed login attempts. which allows an attacker to bypass of "Max failed attempts" restriction and send a big number of login attempts before being blocked via simultaneously sending multiple login requests
Github GHSA Github GHSA GHSA-826h-p4c3-477p Mattermost Race Condition vulnerability
Fixes

Solution

Update Mattermost Server to versions 10.2.0, 10.1.3, 10.0.3, 9.11.5, 9.5.13 or higher.


Workaround

No workaround given by the vendor.

References
History

Wed, 15 Oct 2025 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Mattermost mattermost Server
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost mattermost Server

Sat, 12 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00038}

epss

{'score': 0.00041}


Mon, 16 Dec 2024 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 16 Dec 2024 08:15:00 +0000

Type Values Removed Values Added
Description Mattermost versions 10.1.x <= 10.1.2, 10.0.x <= 10.0.2, 9.11.x <= 9.11.4, and 9.5.x <= 9.5.12 fail to prevent concurrently checking and updating the failed login attempts. which allows an attacker to bypass of "Max failed attempts" restriction and send a big number of login attempts before being blocked via simultaneously sending multiple login requests
Title Bypass of "Max failed attempts" restriction via race condition
Weaknesses CWE-362
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published:

Updated: 2024-12-16T16:04:58.409Z

Reserved: 2024-12-11T10:11:03.756Z

Link: CVE-2024-48872

cve-icon Vulnrichment

Updated: 2024-12-16T16:04:51.066Z

cve-icon NVD

Status : Analyzed

Published: 2024-12-16T08:15:04.950

Modified: 2025-10-15T14:13:31.663

Link: CVE-2024-48872

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-13T21:07:45Z