CVE-2024-36250 MFA Code Replay
Attackers can bypass multi-factor authentication by replaying valid codes within a short window, leading to unauthorized account access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-36250?
CVE-2024-36250 is a low-severity authentication bypass vulnerability in Mattermost Mattermost Server, published on 9 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Mattermost versions 9.11.x <= 9.11.2, and 9.5.x <= 9.5.10 fail to protect the mfa code against replay attacks, which allows an attacker to reuse the MFA code within ~30 seconds
Which versions are affected by CVE-2024-36250?
1 open source package ship an affected version, including mattermost. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mattermost Bitnami | From 9.5.0 | 9.5.11, 9.11.3 |
Products include Mattermost Mattermost Server.
How do I fix CVE-2024-36250?
Upgrade mattermost to a fixed version for your release line: 9.5.11 or 9.11.3.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-36250 being exploited?
There is no known exploitation of CVE-2024-36250 in the wild and no public exploit code.
Other vulnerabilities in Mattermost Mattermost Server
- CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers
- CVE-2025-12421 Account Takeover via Code Exchange Endpoint
- CVE-2025-4981 Path Traversal Leading to RCE by Any Authenticated Mattermost User
- CVE-2025-20051 Arbitrary file read via block duplication in Mattermost Boards
- CVE-2025-25279 Arbitrary file read in Mattermost Boards via import & export board archive
Sources
Also known as BIT-mattermost-2024-36250, GHSA-8ww9-xwc2-p9cc.