GO-2025-4259
Mattermost doesn't validate user channel membership when attaching Mattermost posts as comments to Jira issues in github.com/mattermost/mattermost-server
Quick fix
GO-2025-4259 — github.com/mattermost/mattermost-server: upgrade to the fixed version with the command below.
go get github.com/mattermost/mattermost-server@v10.11.8+incompatibleDetails
Mattermost doesn't validate user channel membership when attaching Mattermost posts as comments to Jira issues in github.com/mattermost/mattermost-server.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.0.0-20251121122154-b57c297c6d7.
Are you affected?
Enter the version of the package you're using.
Affected packages
10.11.0+incompatibleFixed in: 10.11.8+incompatiblego get github.com/mattermost/mattermost-server@v10.11.8+incompatible0No fixed version published yet for github.com/mattermost/mattermost-server/v5 (go modules). Pin to a known-safe version or switch to an alternative.
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.
0No fixed version published yet for github.com/mattermost/mattermost/server/v8 (go modules). Pin to a known-safe version or switch to an alternative.
References
- https://github.com/advisories/GHSA-fmqf-pmcm-8cx9[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2025-13767[ADVISORY]
- https://github.com/mattermost/mattermost/commit/b57c297c6d7ae6812d85e32a625806ac9555deee[WEB]
- https://github.com/mattermost/mattermost/pull/34551[WEB]
- https://mattermost.com/security-updates[WEB]