CVE-2024-34029 - Vulnerability Details - OpenCVE

Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1 and 8.1.x <= 8.1.12 fail to perform a proper authorization check in the /api/v4/groups/<group-id>/channels/<channel-id>/link endpoint which allows a user to learn the members of an AD/LDAP group that is linked to a team by adding the group to a channel, even if the user has no access to the team.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00311.

Key SSVC decision points have not yet been added.

Vendors	Products
Mattermost	Mattermost Mattermost Server

Configuration 1 [-]

OR	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products
Mattermost	Mattermost

Fixes

Solution

Update Mattermost to versions 9.8.0, 9.5.4, 9.7.2, 8.1.13 or higher.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://mattermost.com/security-updates

History

Tue, 30 Sep 2025 15:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mattermost mattermost Server
CPEs		cpe:2.3:a:mattermost:mattermost_server::::::::
Vendors & Products		Mattermost mattermost Server

MITRE

Status: PUBLISHED

Assigner: Mattermost

Published: 2024-05-26T13:27:27.082Z

Updated: 2024-08-02T02:42:59.966Z

Reserved: 2024-05-23T10:57:59.882Z

Link: CVE-2024-34029

Vulnrichment

Updated: 2024-08-02T02:42:59.966Z

NVD

Status : Analyzed

Published: 2024-05-26T14:15:09.367

Modified: 2025-09-30T15:26:42.900

Link: CVE-2024-34029

Redhat

No data.

OpenCVE Enrichment

Updated: 2025-07-13T21:08:02Z

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