medium4.3
CVE-2025-13324
Mattermost has an Invite Token Replay Vulnerability via Channel Membership Manipulation
Impact
Mattermost versions 10.11.x < 10.11.5, 11.0.x < 11.0.4, 10.12.x < 10.12.2 fail to invalidate remote cluster invite tokens when using the legacy (version 1) protocol or when the confirming party does not provide a refreshed token, which allows an attacker who has obtained an invite token to authenticate as the remote cluster and perform limited actions on shared channels even after the invitation has been legitimately confirmed.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost | >= 10.12.0, < 10.12.2 | 10.12.2 |
| go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-20251031095924-e7e23b94e006 | 8.0.0-20251031095924-e7e23b94e006 |
| go | github.com/mattermost/mattermost-server | < 5.3.2-0.20251028000919-d3ed703dc833 | 11.0.4 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost Server | from 10.11.0 before 10.11.6 from 10.12.0 before 10.12.3 from 11.0.0 before 11.0.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://mattermost.com/security-updates
- https://github.com/advisories/GHSA-x3r8-2hmh-89f5
- https://nvd.nist.gov/vuln/detail/CVE-2025-13324
- https://github.com/mattermost/mattermost/commit/364c2203de00fe0d8424b6b46d6f0eeb02a2539a
- https://github.com/mattermost/mattermost/commit/7ccb62db7958abd6a4b21a06c5a4f5367a8f8b1f
- https://github.com/mattermost/mattermost/commit/9f54e5cdc3aef412945ff0e6a58338f7b549bdda