CVE-2026-4643

LOW EPSS 6.7%
Published May 18, 20261mo ago · Modified Jun 17, 20261w ago
3.5 CVSS 3.1
Low
Find Similar
Published May 18, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking {{window.close()}} in the renderer context, leading to a denial of service condition at the client level. Mattermost Advisory ID: MMSA-2026-00633

CVSS Details

Base Score
3.5
Exploitability
2.1
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
6.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-754

Affected Products 3

VendorProductVersionRange
mattermostmattermost_desktop* ≤5.4.13.0
mattermostmattermost_desktop*≥6.0.0  –  ≤6.0.1
mattermostmattermost_desktop*≥6.1.0  –  <6.2.0

References 1

  • mattermost.com https://mattermost.com/security-updates
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.