SecuriTricks - CVE-2026-7184

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

Product(s) Impacted

Vendor	Product	Versions
Mattermost	Mattermost	11.6., 11.5., 10.11.*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-201

Insertion of Sensitive Information Into Sent Data

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	mattermost	mattermost	11.6.*	/	/	/	/	/	/	/
a	mattermost	mattermost	11.5.*	/	/	/	/	/	/	/
a	mattermost	mattermost	10.11.*	/	/	/	/	/	/	/

References

https://mattermost.com/security-updates

CVSS Score

6.5 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: NONE
Availability Impact: NONE

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

View Vector String

Timeline

Published: June 12, 2026, 5:16 p.m.
Last Modified: June 12, 2026, 5:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-7184