Mattermost has an Invite Token Replay Vulnerability via Channel Membership Manipulation in github.com/mattermost/mattermost
Mattermost has an Invite Token Replay Vulnerability via Channel Membership Manipulation in github.com/mattermost/mattermost
02 / AFFECTED SOFTWARE
Affected packages
91 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Mattermost has an Invite Token Replay Vulnerability via Channel Membership Manipulation in github.com/mattermost/mattermost
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.
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.
05 / REFERENCES
Further evidence
- https://github.com/advisories/GHSA-x3r8-2hmh-89f5
- https://github.com/mattermost/mattermost/commit/364c2203de00fe0d8424b6b46d6f0eeb02a2539a
- https://github.com/mattermost/mattermost/commit/7ccb62db7958abd6a4b21a06c5a4f5367a8f8b1f
- https://github.com/mattermost/mattermost/commit/9f54e5cdc3aef412945ff0e6a58338f7b549bdda
- https://mattermost.com/security-updates
- https://nvd.nist.gov/vuln/detail/CVE-2025-13324
- https://github.com/mattermost/mattermost
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/13xxx/CVE-2025-13324.json