CVE-2026-79767Network attack vector

Privilege escalation via unchecked non-user project subjects

Published Sep 22, 2026 · Updated Sep 22, 2026

Incorrect authorization in Gardener allows remote authenticated users with project-admin rights to grant broad project access. The customverbauthorizer mustCheckProjectMembers manage-members check compares User subjects but omits Group and ServiceAccount subjects in Project.spec.members. A project administrator without manage-members permission can add system:authenticated or another subject and expose Shoots, Secrets, and cloud credentials.

CVSS severityUnavailable
Unscored
EPSS probability0.39%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Gardener allows remote authenticated users with project-admin rights to grant broad project access. The customverbauthorizer mustCheckProjectMembers manage-members check compares User subjects but omits Group and ServiceAccount subjects in Project.spec.members. A project administrator without manage-members permission can add system:authenticated or another subject and expose Shoots, Secrets, and cloud credentials.

The record

CVE
CVE-2026-79767
Published
Sep 22, 2026
Updated
Sep 22, 2026
Vendor
Gardener
Product
Gardener
Classifications
T1098.006
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 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=< 1.142.6
  2. Affected versionversion=>= 1.143.0, < 1.143.3
  3. Affected versionversion=>= 1.144.0, < 1.144.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Gardener · Gardenerversion=< 1.142.6; version=>= 1.143.0, < 1.143.3; version=>= 1.144.0, < 1.144.2

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1098.006Account Manipulation: Additional Container Cluster Roles

Public exploit references

No public exploit references are available in this record.

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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