CVE-2026-7184 — MEDIUM (6.5)

Q: How severe is CVE-2026-7184?

CVE-2026-7184 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-7184?

Check the references section above for vendor advisories and patch information. Affected products include: Mattermost Mattermost Server.

Vulnerability Description

Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15 fail to sanitize the Remote Cluster API response on PATCH operations, which allows authenticated users with the {{manage_secure_connections}} permission to obtain remote cluster authentication tokens via a PATCH request to the remote cluster endpoint.. Mattermost Advisory ID: MMSA-2026-00662

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Mattermost	Mattermost Server	>= 10.11.0, < 10.11.17

Related Weaknesses (CWE)

CWE-201

References

https://mattermost.com/security-updatesVendor Advisory

FAQ

What is CVE-2026-7184?

CVE-2026-7184 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15 fail to sanitize the Remote Cluster API response on PATCH operations, which allows authenticated users with the {{manage_sec...

How severe is CVE-2026-7184?

CVE-2026-7184 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-7184?

Check the references section above for vendor advisories and patch information. Affected products include: Mattermost Mattermost Server.