CVE-2026-57855: Improper Access Control in Cockpit HQ Cockpit CMS
Cockpit CMS has a missing authorization vulnerability in its Bucket file storage API, allowing any authenticated user to perform bucket operations without proper access control. This affects commands such as listing, uploading, removing files, renaming, and creating folders in any bucket, including those intended for admin use only. The vulnerability is due to the api() method in modules/System/Controller/Buckets.php not enforcing ACL or role checks.
AI Analysis
Technical Summary
CVE-2026-57855 describes an improper access control vulnerability in Cockpit CMS's Bucket file storage API endpoint (/system/buckets/api). The api() method executes bucket commands (ls, upload, removefiles, rename, createfolder) without verifying user roles or access control lists, enabling any authenticated user to perform all bucket operations on any bucket, including admin-only buckets. This lack of authorization checks allows privilege escalation within the CMS's file storage system.
Potential Impact
Any authenticated user can perform sensitive bucket operations on any bucket, including those intended for administrative use. This can lead to unauthorized data access, modification, or deletion within the CMS's file storage, potentially compromising the confidentiality, integrity, and availability of stored content.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented. Until a patch is available, restrict authenticated user access to trusted individuals only and monitor for suspicious activity related to bucket operations.
CVE-2026-57855: Improper Access Control in Cockpit HQ Cockpit CMS
Description
Cockpit CMS has a missing authorization vulnerability in its Bucket file storage API, allowing any authenticated user to perform bucket operations without proper access control. This affects commands such as listing, uploading, removing files, renaming, and creating folders in any bucket, including those intended for admin use only. The vulnerability is due to the api() method in modules/System/Controller/Buckets.php not enforcing ACL or role checks.
CVSS v4.0
Score 8.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-57855 describes an improper access control vulnerability in Cockpit CMS's Bucket file storage API endpoint (/system/buckets/api). The api() method executes bucket commands (ls, upload, removefiles, rename, createfolder) without verifying user roles or access control lists, enabling any authenticated user to perform all bucket operations on any bucket, including admin-only buckets. This lack of authorization checks allows privilege escalation within the CMS's file storage system.
Potential Impact
Any authenticated user can perform sensitive bucket operations on any bucket, including those intended for administrative use. This can lead to unauthorized data access, modification, or deletion within the CMS's file storage, potentially compromising the confidentiality, integrity, and availability of stored content.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented. Until a patch is available, restrict authenticated user access to trusted individuals only and monitor for suspicious activity related to bucket operations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-06-25T18:48:00.282Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a556b3468715ace4302578d
Added to database: 07/13/2026, 22:48:20 UTC
Last enriched: 07/13/2026, 23:02:33 UTC
Last updated: 07/13/2026, 23:41:50 UTC
Views: 7
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