What’s Vulnerable › Vulnerabilities

CVE-2019-11248: Kubernetes kubelet exposes /debug/pprof info on healthz port

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 75.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-08-29 · updated 2026-06-17
• Weakness: CWE-419

Description

The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. The go pprof endpoint is exposed over the Kubelet's healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration.

Affected products

• Kubernetes: before 1.12.10; 1.13.0, 1.13.0-alpha0, 1.13.0-alpha1, 1.13.0-alpha2, 1.13.0-alpha3, 1.13.0-beta0 (+43) — fixed in 1.12.10

How to fix

Upgrade to a fixed version: Kubernetes 1.12.10. Check the vendor advisory for mitigations.

References

• https://github.com/kubernetes/kubernetes/issues/81023
• https://groups.google.com/d/msg/kubernetes-security-announce/pKELclHIov8/BEDtRELACQAJ
• https://security.netapp.com/advisory/ntap-20190919-0003/
• https://github.com/kubernetes/kubernetes/issues/81023
• https://groups.google.com/d/msg/kubernetes-security-announce/pKELclHIov8/BEDtRELACQAJ
• https://security.netapp.com/advisory/ntap-20190919-0003/

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