What is GHSA-7pf2-9c95-w332?

GHSA-7pf2-9c95-w332 is a security advisory published by GitHub Security Advisories with High severity. Mattermost versions 11.6.x \u003c= 11.6.0, 11.5.x \u003c= 11.5.3, 11.4.x \u003c= 11.4.4, 10.11.x \u003c= 10.11.14...

Which CVE IDs does GHSA-7pf2-9c95-w332 cover?

GHSA-7pf2-9c95-w332 covers the following CVE IDs: CVE-2026-3473. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-7pf2-9c95-w332?

GHSA-7pf2-9c95-w332 has a CVSS v3 base score of 7.1, published by GitHub Security Advisories.

GHSA-7pf2-9c95-w332HighCVSS 7.1

Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14...

Vendor

GitHub Security Advisories

Published

May 26, 2026

Last Modified

May 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-3473 →

📋 Description

Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs.. Mattermost Advisory ID: MMSA-2026-00620

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-3473
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-7pf2-9c95-w332