What is GHSA-82j6-4fq7-fx62?

GHSA-82j6-4fq7-fx62 is a security advisory published by GitHub Security Advisories with High severity. Mattermost versions 11.5.x \u003c= 11.5.1, 10.11.x \u003c= 10.11.13, 11.4.x \u003c= 11.4.3 fail to sanitize...

Which CVE IDs does GHSA-82j6-4fq7-fx62 cover?

GHSA-82j6-4fq7-fx62 covers the following CVE IDs: CVE-2026-6347. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-82j6-4fq7-fx62?

GHSA-82j6-4fq7-fx62 has a CVSS v3 base score of 7.6, published by GitHub Security Advisories.

GHSA-82j6-4fq7-fx62HighCVSS 7.6

Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to sanitize...

Vendor

GitHub Security Advisories

Published

May 18, 2026

Last Modified

May 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-6347 →

📋 Description

Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to sanitize sensitive configuration fields in the Mattermost Calls plugin which allows an attacker with access to a support packet to obtain TURN server credentials via the plaintext values present in the exported plugin configuration.. Mattermost Advisory ID: MMSA-2026-00605

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-6347
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-82j6-4fq7-fx62