| id: GO-2025-4172 |
| modules: |
| - module: github.com/mattermost/mattermost |
| non_go_versions: |
| - introduced: 11.0.0 |
| unsupported_versions: |
| - last_affected: 11.0.2 |
| vulnerable_at: 11.1.1+incompatible |
| - module: github.com/mattermost/mattermost |
| versions: |
| - introduced: 10.5.0+incompatible |
| unsupported_versions: |
| - last_affected: 10.5.12 |
| vulnerable_at: 11.1.1+incompatible |
| - module: github.com/mattermost/mattermost |
| versions: |
| - introduced: 10.11.0+incompatible |
| unsupported_versions: |
| - last_affected: 10.11.4 |
| vulnerable_at: 11.1.1+incompatible |
| - module: github.com/mattermost/mattermost |
| versions: |
| - introduced: 10.12.0+incompatible |
| unsupported_versions: |
| - last_affected: 10.12.1 |
| vulnerable_at: 11.1.1+incompatible |
| - module: github.com/mattermost/mattermost-server |
| vulnerable_at: 11.1.1+incompatible |
| - module: github.com/mattermost/mattermost-server/v5 |
| vulnerable_at: 5.39.3 |
| - module: github.com/mattermost/mattermost-server/v6 |
| vulnerable_at: 6.7.2 |
| - module: github.com/mattermost/mattermost/server/v8 |
| unsupported_versions: |
| - last_affected: 8.0.0-20251013062617-7977e7e6dae3 |
| vulnerable_at: 8.0.0-20251202172228-dbcfd0c90e29 |
| summary: Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost |
| cves: |
| - CVE-2025-12756 |
| ghsas: |
| - GHSA-p6gj-jc38-x2m7 |
| references: |
| - advisory: https://github.com/advisories/GHSA-p6gj-jc38-x2m7 |
| - advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-12756 |
| - web: https://mattermost.com/security-updates |
| notes: |
| - fix: 'module merge error: could not merge versions of module github.com/mattermost/mattermost: introduced and fixed versions must alternate' |
| source: |
| id: GHSA-p6gj-jc38-x2m7 |
| created: 2025-12-02T13:16:30.878473528-05:00 |
| review_status: UNREVIEWED |
