Is CVE-2026-1046 actively exploited?

CVE-2026-1046 has no public evidence of in-the-wild exploitation as of 2026-02-18.

What is the CVSS score for CVE-2026-1046?

CVE-2026-1046 has a CVSS score of 7.6 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L.

How do I patch CVE-2026-1046?

Vendor patch guidance is linked from the references on this page. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-1046.

Which products are affected by CVE-2026-1046?

Affected products for CVE-2026-1046 are listed on this page once vendor data becomes available.

Fix CVE-2026-1046 - HIGH Vulnerability

Description

Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Mattermost server to execute arbitrary executables on a user’s system via the user clicking on certain items in the Help menu Mattermost Advisory ID: MMSA-2026-00577

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L
Attack Vector: network
Complexity: low
Privileges: low
User Action: required
Scope: changed
Confidentiality: high
Integrity: none
Availability: low
Weaknesses: CWE-939

Metadata

Primary Vendor: UNKNOWN
Published: 2/16/2026
Last Modified: 2/18/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

No affected products information available.

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-1046. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-1046

View on NIST NVD

CVE-2026-1046 vulnerability