LOW3.7
GO-2025-4036
Mattermost has an Observable Timing Discrepancy vulnerability in github.com/mattermost/mattermost-server
Quick fix
GO-2025-4036 — github.com/mattermost/mattermost-server: upgrade to the fixed version with the command below.
go get github.com/mattermost/mattermost-server@v10.5.11+incompatibleDetails
Mattermost has an Observable Timing Discrepancy vulnerability 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:
10.5.0+incompatibleFixed in: 10.5.11+incompatibleFix
go get github.com/mattermost/mattermost-server@v10.5.11+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: 8.0.0-20250728063359-38208b8f065fFix
go get github.com/mattermost/mattermost/server/v8@v8.0.0-20250728063359-38208b8f065fReferences
- https://github.com/advisories/GHSA-xr3w-rmvj-f6m7[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2025-54499[ADVISORY]
- https://github.com/mattermost/mattermost/commit/38208b8f065f0786eac0e968f9d754b91b62878c[WEB]
- https://github.com/mattermost/mattermost/commit/97a4c7839cf5610cfe17c52042878aebb7678372[WEB]
- https://mattermost.com/security-updates[WEB]