CVE-2024-41926: Malicious remote can claim that a user was synced from another remote
Mattermost versions 9.9.x <= 9.9.0 and 9.5.x <= 9.5.6 fail to validate the source of sync messages and only allow the correct remote IDs, which allows a malicious remote to set arbitrary RemoteId values for synced users and therefore claim that a user was synced from another remote.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2024-41926?
CVE-2024-41926 is a medium severity vulnerability that allows arbitrary RemoteId values to be set for synced users.
How do I fix CVE-2024-41926?
To fix CVE-2024-41926, upgrade Mattermost to version 9.9.1 or 9.5.7.
Which versions of Mattermost are affected by CVE-2024-41926?
Mattermost versions 9.9.x up to 9.9.0 and 9.5.x up to 9.5.6 are affected by CVE-2024-41926.
What type of vulnerability is CVE-2024-41926?
CVE-2024-41926 is a validation error vulnerability that allows manipulation of user sync messages.
Can CVE-2024-41926 be exploited remotely?
Yes, CVE-2024-41926 can be exploited remotely by a malicious actor to claim unauthorized user synchronization.