What is GHSA-274r-72wh-m76c?

GHSA-274r-72wh-m76c is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost versions 11.7.x \u003c= 11.7.2, 11.6.x \u003c= 11.6.4, 10.11.x \u003c= 10.11.19 fail to check the...

Which CVE IDs does GHSA-274r-72wh-m76c cover?

GHSA-274r-72wh-m76c covers the following CVE IDs: CVE-2026-9824. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-274r-72wh-m76c?

GHSA-274r-72wh-m76c has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

GHSA-274r-72wh-m76cMediumCVSS 4.3

Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to check the...

Vendor

GitHub Security Advisories

Published

July 13, 2026

Last Modified

July 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-9824 →

📋 Description

Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to check the manage_shared_channels permission in the /share-channel autocomplete handler, which allows an authenticated user without that permission to enumerate configured remote cluster connection metadata via slash command autocomplete.. Mattermost Advisory ID: MMSA-2026-00676

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-9824
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-274r-72wh-m76c