CVE-2026-57855Network attack vector

Authenticated file manipulation via unchecked bucket commands

Published Jul 13, 2026 · Updated Jul 13, 2026

Missing authorization in Cockpit CMS before 2.14.0 allows remote authenticated users to alter files through the Bucket storage API. The api() method in modules/System/Controller/Buckets.php dispatches ls, upload, removal, rename, and folder commands without an ACL or role check. Any authenticated role can reach the endpoint, enabling file listing and modification in restricted buckets.

CVSS severity8.7
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Cockpit CMS before 2.14.0 allows remote authenticated users to alter files through the Bucket storage API. The api() method in modules/System/Controller/Buckets.php dispatches ls, upload, removal, rename, and folder commands without an ACL or role check. Any authenticated role can reach the endpoint, enabling file listing and modification in restricted buckets.

The record

CVE
CVE-2026-57855
Published
Jul 13, 2026
Updated
Jul 13, 2026
Vendor
Cockpit HQ
Product
Cockpit CMS
Classifications
CWE-284, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.14.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Cockpit HQ · Cockpit CMSversion=0 <2.14.0

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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