What is GHSA-7cr3-38jm-6p45?

GHSA-7cr3-38jm-6p45 is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost has a Missing Authorization vulnerability

Which CVE IDs does GHSA-7cr3-38jm-6p45 cover?

GHSA-7cr3-38jm-6p45 covers the following CVE IDs: CVE-2025-41443. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-7cr3-38jm-6p45?

GHSA-7cr3-38jm-6p45 has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

Which products are affected by GHSA-7cr3-38jm-6p45?

GHSA-7cr3-38jm-6p45 affects 3 products, including: go/github.com/mattermost/mattermost/server/v8:\u003c 8.0.0-20250822090405-e8c7e7d0252b; go/github.com/mattermost/mattermost-server:\u003e= 10.5.0, \u003c 10.5.11; go/github.com/mattermost/mattermost-server:\u003e= 10.11.0, \u003c 10.11.3.

GHSA-7cr3-38jm-6p45MediumCVSS 4.3

Mattermost has a Missing Authorization vulnerability

Vendor

GitHub Security Advisories

Published

October 16, 2025

Last Modified

October 16, 2025

🔗 CVE IDs covered (1)

CVE-2025-41443 →

📋 Description

Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when accessing channel information which allows guest users to discover active public channels and their metadata via the /api/v4/teams/{team_id}/channels/ids endpoint

🎯 Affected products3

go/github.com/mattermost/mattermost/server/v8:< 8.0.0-20250822090405-e8c7e7d0252b
go/github.com/mattermost/mattermost-server:>= 10.5.0, < 10.5.11
go/github.com/mattermost/mattermost-server:>= 10.11.0, < 10.11.3

🔗 References (6)

https://nvd.nist.gov/vuln/detail/CVE-2025-41443
https://mattermost.com/security-updates
https://github.com/mattermost/mattermost/pull/31327
https://github.com/mattermost/mattermost/pull/33778
https://github.com/mattermost/mattermost/commit/e8c7e7d0252bbf1e098aae4a5ea05d945afd7e70
https://github.com/advisories/GHSA-7cr3-38jm-6p45