CVE-2024-24776: Incorrect Authorization leads to Channel Member Count Leak
First published: Fri Feb 09 2024(Updated: )
Mattermost fails to check the required permissions in the POST /api/v4/channels/stats/member_count API resulting in channel member counts being leaked to a user without permissions.
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost Mattermost Server | <=8.1.7 | |
| go/github.com/mattermost/mattermost/server/v8 | >=9.0.0<9.3.0 | 9.3.0 |
| go/github.com/mattermost/mattermost/server/v8 | <8.1.8 | 8.1.8 |
Remedy
Update Mattermost Server to versions 8.1.8, 9.4.0 or higher.
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Reference Links
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- alias/GHSA-r833-w756-h5p2
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- agent/epss
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- vendor/mattermost
- canonical/mattermost mattermost server
- version/mattermost mattermost server/8.1.7
- package-manager/go