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Vulnerabilities CVE-2026-57855

CVE-2026-57855

High
Open
TLP:CLEAR

Cockpit CMS Missing Authorization in Bucket File Storage API

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Description

Cockpit CMS contains a missing authorization vulnerability in the Bucket file storage API (/system/buckets/api). The api() method in modules/System/Controller/Buckets.php executes bucket commands (ls, upload, removefiles, rename, createfolder) without performing any ACL or role check. Any authenticated user, regardless of role, can perform all bucket operations on any named bucket, including buckets intended for admin use only.

Details

CVSS Score
8.7
EPSS Score
0.28%

20.7th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Confidence
90%
Published
Jul 13, 2026
Last Modified
Jul 14, 2026
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