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CVE-2026-57855— Cockpit CMS Missing Authorization in Bucket File Storage API

Quick assessment

Affected
Cockpit HQ Cockpit CMS
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cockpit是Cockpit组织开源的一个交互式服务器管理界面。 Cockpit 2.14.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于Bucket file storage API（/system/buckets/api）的api()方法在modules/System/Controller/Buckets.php中执行bucket命令（ls、upload、removefiles、rename、createfolder）时未进行任何ACL或角色检查，导致任何已身份验证用户，无论角色如何，均可在任

CVSS 8.8 · High EPSS 0.52% · P42

Affected Version Matrix 1

VendorProduct Version RangeStatus
Cockpit HQ Cockpit CMS < 2.14.0 affected
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I. Basic Information for CVE-2026-57855

Vulnerability Information
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Vulnerability Title
Cockpit CMS Missing Authorization in Bucket File Storage API
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cockpit 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cockpit是Cockpit组织开源的一个交互式服务器管理界面。 Cockpit 2.14.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于Bucket file storage API（/system/buckets/api）的api()方法在modules/System/Controller/Buckets.php中执行bucket命令（ls、upload、removefiles、rename、createfolder）时未进行任何ACL或角色检查，导致任何已身份验证用户，无论角色如何，均可在任
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cockpit HQ Cockpit CMS 0 ~ 2.14.0 -

II. Public POCs for CVE-2026-57855

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10409 chars
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III. Intelligence Information for CVE-2026-57855

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Patches & Fixes for CVE-2026-57855 (1)

Vendor Advisories for CVE-2026-57855 (2)

Vendor Pages for CVE-2026-57855 (1)

IV. Related Vulnerabilities

Same product: Cockpit CMS
Same vendor: Cockpit HQ
Same weakness: CWE-284

V. Comments for CVE-2026-57855

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