CVE-2025-13324 json
Lack of Invalidation of Legacy Remote Cluster Invite Tokens After Confirmation
published 2025-12-17 10 mo ago modified 2026-10-13 27 d ago also GHSA-x3r8-2hmh-89f5 , GO-2025-4256 , EUVD-2025-203920
- cvss
- 3.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/mattermost/mattermost 10.11.5, 10.11.5+incompatible, 10.12.2, 10.12.2+incompatible, 11.0.4, 11.0.4+incompatible
- go github.com/mattermost/mattermost/server/v8 8.0.0-20251031095924-e7e23b94e006
- go github.com/mattermost/mattermost-server 11.0.4, 11.0.4+incompatible
- Mattermost Mattermost 10.11.6, 10.12.3, 11.0.5, 11.1.0
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20251230T014957-150000.1.134.1
suse advisories SUSE-SU-2026:0037-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 10 mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost | >=10.12.0, <10.12.2 >=10.11.0-rc1, <10.11.5 >=11.0.0-alpha.1, <11.0.4 >=10.11.0-rc1+incompatible, <10.11.5+incompatible >=10.12.0+incompatible, <10.12.2+incompatible >=11.0.0-alpha.1+incompatible, <11.0.4+incompatible |
10.12.2 10.11.5 11.0.4 10.11.5+incompatible 10.12.2+incompatible 11.0.4+incompatible |
| go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20251031095924-e7e23b94e006 |
8.0.0-20251031095924-e7e23b94e006 |
| go | github.com/mattermost/mattermost-server | <11.0.4 <11.0.4+incompatible |
11.0.4 11.0.4+incompatible |
| go | github.com/mattermost/mattermost-server/v5 | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v6 | all versions |
no fix listed |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/mattermost/mattermost/commit/364c2203de00fe0d8424b6b46d6f0eeb02a2539a
web, patch
-
github.com
/mattermost/mattermost/commit/7ccb62db7958abd6a4b21a06c5a4f5367a8f8b1f
web, patch
-
github.com
/mattermost/mattermost/commit/9f54e5cdc3aef412945ff0e6a58338f7b549bdda
web, patch
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2025-13324
advisory
-
github.com
/mattermost/mattermost
package
-
github.com
/advisories/GHSA-x3r8-2hmh-89f5
advisory
Sources
- CVE List CVE-2025-13324
- GitHub Advisory GHSA-x3r8-2hmh-89f5
- NVD CVE-2025-13324
- OSV GO-2025-4256
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