Gardener implements the automated management and operation of Kubernetes clusters as a service. Prior to 1.142.6, 1.143.3, 1.144.2, and 1.145.0, the customverbauthorizer admission plugin's mustCheckProjectMembers manage-members check compares changes to User subjects but does not account for Group or ServiceAccount subjects in Project.spec.members. A project administrator who lacks manage-members permission can add arbitrary Group or ServiceAccount subjects, including the system:authenticated Group, and thereby grant broad project access. The resulting access can include Shoots, Secrets, and cloud provider credentials. This issue is fixed in versions 1.142.6, 1.143.3, 1.144.2, and 1.145.0.
CVE-2026-79767
MEDIUMPre-NVD 5.55.5—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 5.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 67% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EG Risk
- 25(Track)EG Risk 25/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 33%
- KEV
- Not listed
Published
September 22, 2026
Last Modified
September 23, 2026
Advisory Details (4)
Auto-updated Sep 22, 2026🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available
v1.144.2
Patch available: gardener/gardener v1.144.2
https://github.com/gardener/gardener/releases/tag/v1.144.2github_commit
commit 63751db97dca (gardener/gardener)
Fix landed in gardener/gardener commit 63751db97dca — awaiting tagged release
https://github.com/gardener/gardener/commit/63751db97dca6cc5ee5f966d4963415de6ae5545github_pr
[release-v1.144] Align `customverbauthorizer` subject handling with RBAC subject types
Fix merged in gardener/gardener PR #15080 on 2026-06-18 — awaiting tagged release
https://github.com/gardener/gardener/pull/15080github Patch Available🟡 PoC Available
Authorization Bypass via Group Subject Injection · Advisory · gardener/gardener · GitHub
https://github.com/gardener/gardener/security/advisories/GHSA-gfjv-gqf2-c888Vendor Advisories for CVE-2026-79767(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(2 across 1 ecosystem)
Go(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| gardener/gardener | — | 1.143.3 | — |
| github.com/gardener/gardener | — | 1.142.6 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 7× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-23 18:25 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescore
- 2026-09-23 15:20 UTCEG score recompute
- 2026-09-23 14:50 UTCEG score recompute
- 2026-09-22 20:32 UTCEG score recompute
- 2026-09-22 20:03 UTCEG score recompute
- 2026-09-22 20:02 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-863
Frequently asked(5)
What is CVE-2026-79767?
CVE-2026-79767 is a medium vulnerability published on September 22, 2026. Gardener implements the automated management and operation of Kubernetes clusters as a service. Prior to 1.142.6, 1.143.3, 1.144.2, and 1.145.0, the customverbauthorizer admission plugin's mustCheckProjectMembers manage-members check compares changes to User subjects but does not account for Group…
When was CVE-2026-79767 disclosed?
CVE-2026-79767 was first published in the National Vulnerability Database on September 22, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79767 actively exploited?
CVE-2026-79767 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.1% of all scored CVEs.
What is the CVSS score of CVE-2026-79767?
CVE-2026-79767 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-79767?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79767, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-79767
Is Your Infrastructure Affected by CVE-2026-79767?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.