CVE-2025-22449 json
Access control flaw for team admins allows unauthorized team additions
published 2025-01-09 21 mo ago modified 2026-09-10 1 mo ago also GHSA-q8fg-cp3q-5jwm , GO-2025-3377 , EUVD-2025-0038
- cvss
- 3.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
Mattermost versions 9.11.x <= 9.11.5 fail to enforce invite permissions, which allows team admins, with no permission to invite users to their team, to invite users by updating the "allow_open_invite" field via making their team public.
Patch / fix
- go github.com/mattermost/mattermost/server/v8 8.0.0-20250102081831-64c566a8280b, 9.11.6
- Mattermost Mattermost 9.11.6, 10.3.0
- govulncheck-vulndb SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 0.0.20250128T150132-150000.1.29.1
suse advisories SUSE-SU-2025:0297-1
- govulncheck-vulndb openSUSE Tumbleweed 0.0.20250109T194159-1.1
opensuse advisories openSUSE-SU-2025:14644-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2025-22449 updated cvss 3.8
mattermost: Access control flaw for team admins allows unauthorized team additions
-
Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/acm-grafana-rhel8 Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8, advanced-cluster-security/rhacs-roxctl-rhel8, advanced-cluster-security/rhacs-rhel8-operator, advanced-cluster-security/rhacs-central-db-rhel8, advanced-cluster-security/rhacs-scanner-v4-rhel8, advanced-cluster-security/rhacs-scanner-v4-db-rhel8 Red Hat Ceph Storage 5 rhceph/rhceph-5-dashboard-rhel8 Red Hat Ceph Storage 6 rhceph/rhceph-6-dashboard-rhel9 Red Hat Ceph Storage 8 rhceph/grafana-rhel9 Red Hat OpenShift GitOps openshift-gitops-1/dex-rhel8not affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N |
| GitHub | 3.1 | 3.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | >=9.11.0, <9.11.6 <8.0.0-20250102081831-64c566a8280b |
9.11.6 8.0.0-20250102081831-64c566a8280b |
| go | github.com/mattermost/mattermost-server | >=9.11.0+incompatible |
no fix listed |
| 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
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2025-22449
advisory
-
github.com
/mattermost/mattermost
package
-
github.com
/advisories/GHSA-q8fg-cp3q-5jwm
advisory
Sources
- CVE List CVE-2025-22449
- GitHub Advisory GHSA-q8fg-cp3q-5jwm
- NVD CVE-2025-22449
- OSV GO-2025-3377
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