CVE-2024-23493 Team associated AD/LDAP Groups Leaked due to missing authorization
An attacker can read AD/LDAP group details for teams they do not belong to due to missing authorization checks in Mattermost.
- 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-2024-23493?
CVE-2024-23493 is a medium-severity missing authorization vulnerability in Mattermost Mattermost Server, published on 29 Feb 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Mattermost fails to properly authorize the requests fetching team associated AD/LDAP groups, allowing a user to fetch details of AD/LDAP groups of a team that they are not a member of.
Which versions are affected by CVE-2024-23493?
11 open source packages ship an affected version, including github.com/mattermost/mattermost/server/v8, mattermost and github.com/mattermost/mattermost-server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/mattermost/mattermost/server/v8 Go | All versions | None |
github.com/mattermost/mattermost/server/v8 Go | From 9.2.0 | 9.2.5 |
github.com/mattermost/mattermost/server/v8 Go | From 9.2.0 | 9.2.5 |
github.com/mattermost/mattermost/server/v8 Go | From 9.3.0 | 9.3.1 |
github.com/mattermost/mattermost/server/v8 Go | From 9.3.0 | 9.3.1 |
github.com/mattermost/mattermost/server/v8 Go | From 9.4.0 | 9.4.2 |
5 more packages
github.com/mattermost/mattermost/server/v8 Go | From 9.4.0 | 9.4.2 |
mattermost Bitnami | All versions to 9.3.0-rc1 | 8.1.9, 9.2.5, 9.4.2 |
github.com/mattermost/mattermost-server Go | From 9.2.0+incompatible | 9.2.5+incompatible, 9.3.1+incompatible, 9.4.2+incompatible |
github.com/mattermost/mattermost-server/v5 Go | All versions | None |
github.com/mattermost/mattermost-server/v6 Go | All versions | None |
Products include Mattermost Mattermost Server.
How do I fix CVE-2024-23493?
Upgrade github.com/mattermost/mattermost/server/v8 to a fixed version for your release line: 9.2.5, 9.3.1 or 9.4.2.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2024-23493 being exploited?
There is no known exploitation of CVE-2024-23493 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-2024-23493, GHSA-7v3v-984v-h74r, GO-2024-2590.