Cockpit CMS contains a path traversal vulnerability in the Bucket file storage API (/system/buckets/api). The api() method in modules/System/Controller/Buckets.php sanitizes the bucket name with preg_replace('/[^a-zA-Z0-9-_\\.]/','', $bucket), which permits '..' and '../' sequences. The sanitized value is interpolated into a Flysystem path as uploads://buckets/{bucket}. Flysystem's WhitespacePathNormalizer resolves 'buckets/..' to the empty string (the uploads storage root) without raising PathTraversalDetected because the '..' has a preceding component to consume. An authenticated low-privileged user can send a crafted request with a '../' bucket name to list, upload, and delete files across all buckets, including those belonging to other users or roles
Metrics
Affected Vendors & Products
References
History
Tue, 14 Jul 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Agentejo
Agentejo cockpit |
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| CPEs | cpe:2.3:a:agentejo:cockpit:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Agentejo
Agentejo cockpit |
Tue, 14 Jul 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Mon, 13 Jul 2026 23:00:00 +0000
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| Description | Cockpit CMS contains a path traversal vulnerability in the Bucket file storage API (/system/buckets/api). The api() method in modules/System/Controller/Buckets.php sanitizes the bucket name with preg_replace('/[^a-zA-Z0-9-_\\.]/','', $bucket), which permits '..' and '../' sequences. The sanitized value is interpolated into a Flysystem path as uploads://buckets/{bucket}. Flysystem's WhitespacePathNormalizer resolves 'buckets/..' to the empty string (the uploads storage root) without raising PathTraversalDetected because the '..' has a preceding component to consume. An authenticated low-privileged user can send a crafted request with a '../' bucket name to list, upload, and delete files across all buckets, including those belonging to other users or roles | |
| Title | Cockpit CMS Path Traversal via Bucket Name in Bucket File Storage API | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-07-13T22:41:23.183Z
Updated: 2026-07-14T21:34:35.949Z
Reserved: 2026-06-25T18:48:00.282Z
Link: CVE-2026-57856
Updated: 2026-07-14T12:58:27.762Z
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