GitHub Advisoryadvisory · Go

GHSA-hm95-jx66-g2gh Mattermost Open Redirect vulnerability

LOW Published 2025-09-15 Modified 2025-09-16 Official page ↗
Aliases
CVE-2025-9084
Ecosystem
Go
Packages
github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-server
Severity
Low
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Weaknesses
CWE-601
Reviewed
2025-09-16

Affected packages

• Go github.com/mattermost/mattermost/server/v8: < 8.0.0-202508080704-39bd251fe4f600 → fixed in 8.0.0-202508080704-39bd251fe4f600 • Go github.com/mattermost/mattermost-server: >= 10.5.0, < 10.5.10 → fixed in 10.5.10

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.

Related

Alias · CVE (1)

  • CVE-2025-9084 Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to redirect users to malicious sites… vulnerability

Weakness · CWE (1)

  • CWE-601 URL Redirection to Untrusted Site weakness

References