What is GHSA-v37p-g38w-w7wg?

GHSA-v37p-g38w-w7wg is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost versions 11.8.x \u003c= 11.8.2, 11.7.x \u003c= 11.7.6, 10.11.x \u003c= 10.11.21 fail to restrict...

Which CVE IDs does GHSA-v37p-g38w-w7wg cover?

GHSA-v37p-g38w-w7wg covers the following CVE IDs: CVE-2026-16048. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-v37p-g38w-w7wg?

GHSA-v37p-g38w-w7wg has a CVSS v3 base score of 6.3, published by GitHub Security Advisories.

GHSA-v37p-g38w-w7wgMediumCVSS 6.3

Mattermost versions 11.8.x <= 11.8.2, 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 fail to restrict...

Vendor

GitHub Security Advisories

Published

August 17, 2026

Last Modified

August 17, 2026

🔗 CVE IDs covered (1)

CVE-2026-16048 →

📋 Description

Mattermost versions 11.8.x <= 11.8.2, 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 fail to restrict channel member role assignment to channel-scoped roles which allows a channel administrator to gain additional channel permissions via the channel member roles API.. Mattermost Advisory ID: MMSA-2026-00697

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-16048
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-v37p-g38w-w7wg