What is GHSA-rm64-886x-w6qc?

GHSA-rm64-886x-w6qc is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost Desktop App versions \u003c=6.2 5.5.13 6.0.2.0 fail to properly null check when checking...

Which CVE IDs does GHSA-rm64-886x-w6qc cover?

GHSA-rm64-886x-w6qc covers the following CVE IDs: CVE-2026-8075. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-rm64-886x-w6qc?

GHSA-rm64-886x-w6qc has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-rm64-886x-w6qcMediumCVSS 6.5

Mattermost Desktop App versions <=6.2 5.5.13 6.0.2.0 fail to properly null check when checking...

Vendor

GitHub Security Advisories

Published

July 17, 2026

Last Modified

July 17, 2026

🔗 CVE IDs covered (1)

CVE-2026-8075 →

📋 Description

Mattermost Desktop App versions <=6.2 5.5.13 6.0.2.0 fail to properly null check when checking for headers in the Mattermost Desktop App which allows any user to crash another channel members Desktop App via posting a malicious link with an embedded image that misses one of those headers. Mattermost Advisory ID: MMSA-2026-00668

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-8075
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-rm64-886x-w6qc