CVE-2026-57855

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/sermikr0/821c4edd3c34e98a62a50b07707785bd
https://github.com/Cockpit-HQ/Cockpit/commit/dde2d1d74f5f4e11de42a298918ea8c9684f932c
https://github.com/cockpit-hq/cockpit
https://www.vulncheck.com/advisories/cockpit-cms-missing-authorization-in-bucket-file-storage-api
https://gist.github.com/sermikr0/821c4edd3c34e98a62a50b07707785bd

Configurations

No configuration.

History

14 Jul 2026, 13:18

Type	Values Removed	Values Added
References	~~() https://gist.github.com/sermikr0/821c4edd3c34e98a62a50b07707785bd -~~	() https://gist.github.com/sermikr0/821c4edd3c34e98a62a50b07707785bd -

13 Jul 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-13 23:16

Updated : 2026-07-14 16:42

NVD link : CVE-2026-57855

Mitre link : CVE-2026-57855

CVE.ORG link : CVE-2026-57855

JSON object : View

Products Affected

No product.

CWE

CWE-284

Improper Access Control

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