GO-2025-4247
Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost
Quick fix
GO-2025-4247 — github.com/mattermost/mattermost: upgrade to the fixed version with the command below.
go get github.com/mattermost/mattermost@v11.1.0+incompatibleDetails
Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost.
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 before v10.11.7-0.20251106103514-3b05384dd014; github.com/mattermost/mattermost-server before v10.11.7-0.20251106103514-3b05384dd014.
Are you affected?
Enter the version of the package you're using.
Affected packages
11.0.0-alpha.1+incompatibleFixed in: 11.1.0+incompatiblego get github.com/mattermost/mattermost@v11.1.0+incompatible0Fixed in: 1.0.1-0.20250829075715-0deffcfc6beego get github.com/mattermost/mattermost-plugin-github@v1.0.1-0.20250829075715-0deffcfc6bee10.11.0-rc1+incompatibleNo fixed version published yet for github.com/mattermost/mattermost-server (go modules). Pin to a known-safe version or switch to an alternative.
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.
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-jf5h-xfw4-p8gp[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2025-13352[ADVISORY]
- https://github.com/mattermost/mattermost-plugin-github/commit/0deffcfc6bee7eaf01f7c99100e3d12e8d9df68c[FIX]
- https://github.com/mattermost/mattermost/commit/3b05384dd0146c1be3caa620a42e00e46027055d[FIX]
- https://mattermost.com/security-updates[WEB]