CVE-2026-25877Public exploitNetwork attack vector

Cross-project chart modification via unchecked chart ownership

Published Mar 6, 2026 · Updated Mar 6, 2026

Improper access control in Chartbrew before 4.8.1 allows remote authenticated users to modify or delete charts across projects. The ChartRoute.js checkPermissions middleware authorizes the supplied project_id without verifying that the requested chart_id belongs to that project. A valid token and access to any project are sufficient to reach update or delete routes for a chart in another project.

CVSS severity6.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Chartbrew before 4.8.1 allows remote authenticated users to modify or delete charts across projects. The ChartRoute.js checkPermissions middleware authorizes the supplied project_id without verifying that the requested chart_id belongs to that project. A valid token and access to any project are sufficient to reach update or delete routes for a chart in another project.

The record

CVE
CVE-2026-25877
Published
Mar 6, 2026
Updated
Mar 6, 2026
Vendor
Chartbrew
Product
Chartbrew
Classifications
CWE-284, CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 6, 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=< 4.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Chartbrew · Chartbrewversion=< 4.8.1

Published CVSS scores

6.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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.

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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 exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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