MEDIUM4.3
GO-2025-3757
Mattermost allows guest users to view information about public teams they are not members of in github.com/mattermost/mattermost-server
Quick fix
GO-2025-3757 — github.com/mattermost/mattermost-server: upgrade to the fixed version with the command below.
go get github.com/mattermost/mattermost-server@v9.11.14+incompatibleDetails
Mattermost allows guest users to view information about public teams they are not members of in github.com/mattermost/mattermost-server
Are you affected?
Enter the version of the package you're using.
Affected packages
Go/github.com/mattermost/mattermost-server
Introduced in:
9.11.0+incompatibleFixed in: 9.11.14+incompatibleFix
go get github.com/mattermost/mattermost-server@v9.11.14+incompatibleGo/github.com/mattermost/mattermost-server/v5
Introduced in:
0No fixed version published yet for github.com/mattermost/mattermost-server/v5 (go modules). Pin to a known-safe version or switch to an alternative.
Go/github.com/mattermost/mattermost-server/v6
Introduced in:
0No fixed version published yet for github.com/mattermost/mattermost-server/v6 (go modules). Pin to a known-safe version or switch to an alternative.
Go/github.com/mattermost/mattermost/server/v8
Introduced in:
0Fixed in: 8.0.0-20250422131222-701ddc896a10Fix
go get github.com/mattermost/mattermost/server/v8@v8.0.0-20250422131222-701ddc896a10References
- https://github.com/advisories/GHSA-jwhw-xf5v-qgxc[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2025-4128[ADVISORY]
- https://github.com/mattermost/mattermost/commit/2138a5f2ca6f75e2b99f6a04ea569d0f680c4fab[WEB]
- https://github.com/mattermost/mattermost/commit/701ddc896a107b13f457fbdbe229bce5019fc516[WEB]
- https://mattermost.com/security-updates[WEB]