| id: GO-2026-4521 |
| modules: |
| - module: github.com/mattermost/mattermost-server |
| vulnerable_at: 11.4.1+incompatible |
| - module: github.com/mattermost/mattermost-server |
| versions: |
| - introduced: 10.11.0+incompatible |
| vulnerable_at: 11.4.1+incompatible |
| - module: github.com/mattermost/mattermost-server |
| versions: |
| - introduced: 11.1.0+incompatible |
| vulnerable_at: 11.4.1+incompatible |
| - module: github.com/mattermost/mattermost-server |
| versions: |
| - introduced: 11.2.0+incompatible |
| vulnerable_at: 11.4.1+incompatible |
| - module: github.com/mattermost/mattermost-server/v5 |
| non_go_versions: |
| - fixed: 5.3.2-0.20251209134645-761e56bb11cc |
| vulnerable_at: 5.39.3 |
| - module: github.com/mattermost/mattermost-server/v6 |
| vulnerable_at: 6.7.2 |
| - module: github.com/mattermost/mattermost/server/v8 |
| versions: |
| - fixed: 8.0.0-20251209134645-761e56bb11cc |
| summary: |- |
| Mattermost fails to properly validate team membership when processing channel |
| mentions in github.com/mattermost/mattermost-server |
| cves: |
| - CVE-2025-14350 |
| ghsas: |
| - GHSA-57cc-2pf4-mhmx |
| references: |
| - advisory: https://github.com/advisories/GHSA-57cc-2pf4-mhmx |
| - advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-14350 |
| - web: https://github.com/mattermost/mattermost/commit/761e56bb11ccb751ddbe4bab5898ccc2b384fd82 |
| - web: https://mattermost.com/security-updates |
| notes: |
| - fix: 'module merge error: could not merge versions of module github.com/mattermost/mattermost-server: introduced and fixed versions must alternate' |
| - fix: 'github.com/mattermost/mattermost/server/v8: could not add vulnerable_at: could not find tagged version between introduced and fixed' |
| source: |
| id: GHSA-57cc-2pf4-mhmx |
| created: 2026-02-23T12:10:42.310783215-05:00 |
| review_status: UNREVIEWED |
