CVE-2024-34152 Playbook Run Metadata leak to Guest
Guest users can access metadata of public playbook runs linked to their channels via GraphQL queries, exposing sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-34152?
CVE-2024-34152 is a medium-severity missing authorization vulnerability in Mattermost Mattermost Server, published on 26 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to perform proper access control which allows a guest to get the metadata of a public playbook run that linked to the channel they are guest via sending an RHSRuns GraphQL query request to the server
Weakness: CWE-284
Which versions are affected by CVE-2024-34152?
It affects 1 product.
Products include Mattermost Mattermost Server.
How do I fix CVE-2024-34152?
No fix has been published for CVE-2024-34152 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2024-34152 being exploited?
There is no known exploitation of CVE-2024-34152 in the wild and no public exploit code.
Other vulnerabilities in Mattermost Mattermost Server
- CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers
- CVE-2025-12421 Account Takeover via Code Exchange Endpoint
- CVE-2025-4981 Path Traversal Leading to RCE by Any Authenticated Mattermost User
- CVE-2025-20051 Arbitrary file read via block duplication in Mattermost Boards
- CVE-2025-25279 Arbitrary file read in Mattermost Boards via import & export board archive