CVE-2025-58073

HIGH

Mattermost has a Missing Authorization vulnerability

Published October 16, 2025Updated November 5, 2025Source: osv

Summary

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 OAuth state.

Remediation

Upgrade to the fixed version using your package manager.

Update github.com/mattermost/mattermost-server to 10.10.3 or later

go get github.com/mattermost/mattermost-server@v10.10.3

Update github.com/mattermost/mattermost-server to 10.11.2 or later

go get github.com/mattermost/mattermost-server@v10.11.2

Update github.com/mattermost/mattermost/server/v8 to 8.0.0-20250807174701-e14175eb6539 or later

go get github.com/mattermost/mattermost/server/v8@v8.0.0-20250807174701-e14175eb6539

Update github.com/mattermost/mattermost-server to 10.5.11 or later

go get github.com/mattermost/mattermost-server@v10.5.11

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Package	Ecosystem	Affected	Fixed In
github.com/mattermost/mattermost-server	go	All versions	10.10.3
github.com/mattermost/mattermost-server	go	All versions	10.11.2
github.com/mattermost/mattermost/server/v8	go	All versions	8.0.0-20250807174701-e14175eb6539
github.com/mattermost/mattermost-server	go	All versions	10.5.11

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-862
Missing AuthorizationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.1 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

Frequently Asked Questions

What is CVE-2025-58073?: Mattermost has a Missing Authorization vulnerability This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.1/10).
How do I check if my project is affected by CVE-2025-58073?: CVE-2025-58073 affects github.com/mattermost/mattermost-server and github.com/mattermost/mattermost/server/v8. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-58073 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

8.1

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-6q7m-p8cc-998r

GO-2025-4032

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