GO-2025-4169
Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server
Quick fix
GO-2025-4169 — github.com/mattermost/mattermost/server/v8: upgrade to the fixed version with the command below.
go get github.com/mattermost/mattermost/server/v8@v8.0.0-20251015091448-abbf01b9db45Details
Mattermost fails to sanitize team email addresses 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 from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.
Are you affected?
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Affected packages
0No 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.
0Fixed in: 8.0.0-20251015091448-abbf01b9db45go get github.com/mattermost/mattermost/server/v8@v8.0.0-20251015091448-abbf01b9db45References
- https://github.com/advisories/GHSA-4g87-9x45-cx2h[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2025-12559[ADVISORY]
- https://github.com/mattermost/mattermost/commit/5d8719042c1807da59ac8a821624eb01152d8495[WEB]
- https://github.com/mattermost/mattermost/commit/649aee8fa9184ca59bd66022a33b8f8918e413aa[WEB]
- https://github.com/mattermost/mattermost/commit/7ccb62db7958abd6a4b21a06c5a4f5367a8f8b1f[WEB]
- https://github.com/mattermost/mattermost/commit/9f54e5cdc3aef412945ff0e6a58338f7b549bdda[WEB]
- https://github.com/mattermost/mattermost/commit/abbf01b9db45d1850eaf3701ea8362b910193ffd[WEB]
- https://github.com/mattermost/mattermost/pull/34110[WEB]
- https://mattermost.com/security-updates[WEB]