CVE-2024-11599 Domain Restriction Bypass on Registration
Unauthenticated attackers can bypass email domain restrictions during registration by crafting specific input, allowing unauthorized account creation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-11599?
CVE-2024-11599 is a high-severity authentication bypass vulnerability in Mattermost Mattermost Server, published on 28 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Mattermost versions 10.0.x <= 10.0.1, 10.1.x <= 10.1.1, 9.11.x <= 9.11.3, 9.5.x <= 9.5.11 fail to properly validate email addresses which allows an unauthenticated user to bypass email domain restrictions via carefully crafted input on email registration.
Weakness: CWE-754
Which versions are affected by CVE-2024-11599?
It affects 1 product.
Products include Mattermost Mattermost Server.
How do I fix CVE-2024-11599?
No fix has been published for CVE-2024-11599 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-11599 being exploited?
There is no known exploitation of CVE-2024-11599 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 GHSA-9g34-2mp9-r344.