What is GHSA-hm95-jx66-g2gh?

GHSA-hm95-jx66-g2gh is a security advisory published by GitHub Security Advisories with Low severity. Mattermost Open Redirect vulnerability

Which CVE IDs does GHSA-hm95-jx66-g2gh cover?

GHSA-hm95-jx66-g2gh covers the following CVE IDs: CVE-2025-9084. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-hm95-jx66-g2gh?

GHSA-hm95-jx66-g2gh has a CVSS v3 base score of 3.1, published by GitHub Security Advisories.

Which products are affected by GHSA-hm95-jx66-g2gh?

GHSA-hm95-jx66-g2gh affects 2 products, including: go/github.com/mattermost/mattermost/server/v8:\u003c 8.0.0-202508080704-39bd251fe4f600; go/github.com/mattermost/mattermost-server:\u003e= 10.5.0, \u003c 10.5.10.

GHSA-hm95-jx66-g2ghLowCVSS 3.1

Mattermost Open Redirect vulnerability

Vendor

GitHub Security Advisories

Published

September 15, 2025

Last Modified

September 16, 2025

🔗 CVE IDs covered (1)

CVE-2025-9084 →

📋 Description

Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to redirect users to malicious sites via crafted OAuth login URLs.

🎯 Affected products2

go/github.com/mattermost/mattermost/server/v8:< 8.0.0-202508080704-39bd251fe4f600
go/github.com/mattermost/mattermost-server:>= 10.5.0, < 10.5.10

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2025-9084
https://mattermost.com/security-updates
https://github.com/mattermost/mattermost/commit/39bd251fe4f66b7e847fc6d653221886347ff160
https://github.com/advisories/GHSA-hm95-jx66-g2gh