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CVE-2025-15566

ingress-nginx auth-proxy-set-headers nginx configuration injection

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.12.5, 1.13.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-proxy-set-headers` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Kubernetes ingress-nginx

    fixed in 1.12.5; fixed in 1.13.1

References 1

GitHub · kubernetes/kubernetes