GitHub Advisoryadvisory · Go

GHSA-r6qj-894f-5hr2 Mattermost has a Missing Authorization vulnerability

HIGH Published 2025-10-16 Modified 2025-10-16 Official page ↗
Aliases
CVE-2025-58075
Ecosystem
Go
Packages
github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-server
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-862
Reviewed
2025-10-16

Affected packages

• Go github.com/mattermost/mattermost/server/v8: < 8.0.0-20250815100400-2d5cdc6e217e → fixed in 8.0.0-20250815100400-2d5cdc6e217e • Go github.com/mattermost/mattermost-server: >= 10.11.0, < 10.11.2 → fixed in 10.11.2 • Go github.com/mattermost/mattermost-server: >= 10.10.0, < 10.10.3 → fixed in 10.10.3 • Go github.com/mattermost/mattermost-server: >= 10.5.0, < 10.5.11 → fixed in 10.5.11

Description

Mattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the RelayState.

Related

Alias · CVE (1)

  • CVE-2025-58075 Mattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost… vulnerability

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References