CVE-2024-28053 Resource Exhaustion via the Invitation Feature
An attacker can crash the Mattermost server by sending a large email payload due to missing size limits in the invitation feature.
- 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-2024-28053?
CVE-2024-28053 is a low-severity denial of service vulnerability in Mattermost Mattermost Server, published on 15 Mar 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Resource Exhaustion in Mattermost Server versions 8.1.x before 8.1.10 fails to limit the size of the payload that can be read and parsed allowing an attacker to send a very large email payload and crash the server.
Which versions are affected by CVE-2024-28053?
13 open source packages ship an affected version, including github.com/mattermost/mattermost-server, mattermost and github.com/mattermost/mattermost-server/v5. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/mattermost/mattermost-server Go | All versions | 0.0.0-20240209181221-674f549daf0e |
github.com/mattermost/mattermost-server Go | All versions | 0.0.0-20240209181221-674f549daf0e |
github.com/mattermost/mattermost-server Go | All versions | 0.0.0-20240209181221-674f549daf0e |
mattermost Bitnami | From 8.1.0 | 8.1.10 |
github.com/mattermost/mattermost-server/v5 Go | All versions | None |
github.com/mattermost/mattermost-server/v5 Go | All versions | 0.0.0-20240209181221-674f549daf0e |
7 more packages
github.com/mattermost/mattermost-server/v5 Go | All versions | 0.0.0-20240209181221-674f549daf0e |
github.com/mattermost/mattermost-server/v6 Go | All versions | None |
github.com/mattermost/mattermost-server/v6 Go | All versions | 0.0.0-20240209181221-674f549daf0e |
github.com/mattermost/mattermost-server/v6 Go | All versions | 0.0.0-20240209181221-674f549daf0e |
github.com/mattermost/mattermost/server/v8 Go | All versions | None |
github.com/mattermost/mattermost/server/v8 Go | All versions | 0.0.0-20240209181221-674f549daf0e |
github.com/mattermost/mattermost/server/v8 Go | All versions | 0.0.0-20240209181221-674f549daf0e |
Products include Mattermost Mattermost Server.
How do I fix CVE-2024-28053?
Upgrade github.com/mattermost/mattermost-server to 0.0.0-20240209181221-674f549daf0e or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-28053 being exploited?
There is no known exploitation of CVE-2024-28053 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-2024-28053, GHSA-qqc8-rv37-79q5, GO-2024-3334.