CVE-2024-10241 Private channel names leaked with Ctrl+K when ElasticSearch is enabled

What is CVE-2024-10241?

CVE-2024-10241 is a medium-severity vulnerability in Mattermost Mattermost Server, published on 29 Oct 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Mattermost versions 9.5.x <= 9.5.9 fail to properly filter the channel data when ElasticSearch is enabled which allows a user to get private channel names by using cmd+K/ctrl+K.

Weakness: CWE-284

Which versions are affected by CVE-2024-10241?

6 open source packages ship an affected version, including github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-server and github.com/mattermost/mattermost-server/v5. It affects 1 product.

Products include Mattermost Mattermost Server.

How do I fix CVE-2024-10241?

Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20240813135334-8f3a13122f55 or later.

Is CVE-2024-10241 being exploited?

There is no known exploitation of CVE-2024-10241 in the wild and no public exploit code.

Other vulnerabilities in Mattermost Mattermost Server

• CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers Critical 9.9
• CVE-2025-12421 Account Takeover via Code Exchange Endpoint Critical 9.9
• CVE-2025-4981 Path Traversal Leading to RCE by Any Authenticated Mattermost User Critical 9.9
• CVE-2025-20051 Arbitrary file read via block duplication in Mattermost Boards Critical 9.9
• CVE-2025-25279 Arbitrary file read in Mattermost Boards via import & export board archive Critical 9.9

All Mattermost Mattermost Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6mvp-gh77-7vwh, GO-2024-3232.