In Kubernetes v1.12.0-v1.12.4 and v1.13.0, the rest.AnonymousClientConfig() method…
Priority LOW 38CWE-271Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
In Kubernetes v1.12.0-v1.12.4 and v1.13.0, the rest.AnonymousClientConfig() method returns a copy of the provided config, with credentials removed (bearer token, username/password, and client certificate/key data). In the affected versions, rest.AnonymousClientConfig() did not effectively clear service account credentials loaded using rest.InClusterConfig()
Why it matters now
EPSS 0.01492 74th percentileScored 2026-11-07
Fix Fixed k8s.io/kubernetes (Go): 1.12.5, 1.13.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Kubernetes | Kubernetes | v1.12 – v1.12.4; v1.13 – v1.13.0 | — | No fix listed | CNA |
| — | k8s.io/kubernetes (Go) | 1.12.0 to before 1.12.5 | 1.12.5 | Patch available | GHSA-gc2p-g4fg-29vh |
| — | k8s.io/kubernetes (Go) | 1.13.0 to before 1.13.1 | 1.13.1 | Patch available | GHSA-gc2p-g4fg-29vh |
- Kubernetes VendorKubernetes Affected v1.12 – v1.12.4; v1.13 – v1.13.0 Fixed in — No fix listed CNA
- k8s.io/kubernetes (Go) Vendor— Affected 1.12.0 to before 1.12.5 Fixed in 1.12.5 Patch available GHSA-gc2p-g4fg-29vh
- k8s.io/kubernetes (Go) Vendor— Affected 1.13.0 to before 1.13.1 Fixed in 1.13.1 Patch available GHSA-gc2p-g4fg-29vh
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* | 1.12.0 – 1.12.4 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.13.0:*:*:*:*:*:*:* | 1.13.0 | Vulnerable | Kubernetes |
| cpe:2.3:a:netapp:trident:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* Versions 1.12.0 – 1.12.4 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.13.0:*:*:*:*:*:*:* Versions 1.13.0 Vulnerable ·Kubernetes
- cpe:2.3:a:netapp:trident:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Remediation
- Fix · GHSA-gc2p-g4fg-29vh k8s.io/kubernetes (Go) Fixed in 1.12.5 Advisory →
- Fix · GHSA-gc2p-g4fg-29vh k8s.io/kubernetes (Go) Fixed in 1.13.1 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 9 products
- Red Hat OpenShift Container Platform 3.10
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 3.4
- Red Hat OpenShift Container Platform 3.5
- Red Hat OpenShift Container Platform 3.6
- Red Hat OpenShift Container Platform 3.7
- Red Hat OpenShift Container Platform 3.9
- Red Hat OpenShift Container Platform 4
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11243
- 2026-10-03 Alias added: GHSA-gc2p-g4fg-29vh
References
More Kubernetes vulnerabilities
- TI-2018-16130 Improper privilege management in Kubernetes CVSS 3.0CRITICAL 9.8
- TI-2019-08418 Kubernetes kubelet exposes /debug/pprof info on healthz port CVSS 3.1HIGH 8.2
- TI-2023-05086 Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation CVSS 3.1HIGH 8.8
- TI-2023-03433 Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation CVSS 3.1HIGH 8.8
- TI-2023-02285 Bypass of seccomp profile enforcement CVSS 3.1MEDIUM 5.5
- TI-2017-14755 Link following in Kubernetes CVSS 3.0CRITICAL 9.6
Sources
- CVE-2019-11243 · CVE Program
- CVE-2019-11243 · NVD
- FIRST EPSS
- GHSA-gc2p-g4fg-29vh · GitHub Advisory Database · CC BY 4.0
- CVE-2019-11243 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences