CVE-2026-75025

Mattermost Desktop App versions <=6.2 6.2.2.0 Fixed an issue where Mattermost Desktop did not sufficiently restrict server-rendered content from accessing local or private network resources. Thanks to game0v3r for contributing to this improvement under the Mattermost responsible disclosure policy. Mattermost Advisory ID: MMSA-2026-00698

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://mattermost.com/security-updates	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*

History

13 Oct 2026, 12:05

Type	Values Removed	Values Added
First Time		Mattermost Mattermost mattermost Desktop
CPE		cpe:2.3:a:mattermost:mattermost_desktop::::::::
References	~~() https://mattermost.com/security-updates -~~	() https://mattermost.com/security-updates - Vendor Advisory

16 Sep 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-16 19:17

Updated : 2026-10-13 12:05

NVD link : CVE-2026-75025

Mitre link : CVE-2026-75025

CVE.ORG link : CVE-2026-75025

JSON object : View

Products Affected

mattermost

mattermost_desktop

CWE

CWE-346

Origin Validation Error

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