What is GHSA-pf78-3frq-v82v?

GHSA-pf78-3frq-v82v is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost Desktop App versions \u003c=6.1 5.5.13.0 fail to account for attempting to open extremely...

Which CVE IDs does GHSA-pf78-3frq-v82v cover?

GHSA-pf78-3frq-v82v covers the following CVE IDs: CVE-2026-8683. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-pf78-3frq-v82v?

GHSA-pf78-3frq-v82v has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-pf78-3frq-v82vMediumCVSS 6.5

Mattermost Desktop App versions <=6.1 5.5.13.0 fail to account for attempting to open extremely...

Vendor

GitHub Security Advisories

Published

June 15, 2026

Last Modified

June 15, 2026

🔗 CVE IDs covered (1)

CVE-2026-8683 →

📋 Description

Mattermost Desktop App versions <=6.1 5.5.13.0 fail to account for attempting to open extremely long URLs in the Mattermost Desktop App which allows a malicious server owner to crash the application via including a script to call window.open on a very large URL. Mattermost Advisory ID: MMSA-2026-00652

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-8683
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-pf78-3frq-v82v