CVE-2024-34029

Medium

Description

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.

SeverityMedium
CVSS4.3
Exploit probability—
ProductMattermost Server
PublishedMay 26, 2024
First seenMay 26, 2024

How to fix

Update
  • mattermost mattermost_server8.1.13, 9.5.4, 9.7.2 or later

Affected products

ProductAffected versionsFixed in
mattermost mattermost_server8.1.0 ≤ v < 8.1.13, 9.5.0 ≤ v < 9.5.4, 9.7.0 ≤ v < 9.7.28.1.13, 9.5.4, 9.7.2

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CVE-2024-34029 · Mattermost Server · Dark Radar