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CVE-2026-24513
Ingress NGINX Controller (community-driven) vulnerability analysis and mitigation

A security issue was discovered in ingress-nginx where the protection afforded by the auth-url Ingress annotation may not be effective in the presence of a specific misconfiguration.

If the ingress-nginx controller is configured with a default custom-errors configuration that includes HTTP errors 401 or 403, and if the configured default custom-errors backend is defective and fails to respect the X-Code HTTP header, then an Ingress with the auth-url annotation may be accessed even when authentication fails.

Note that the built-in custom-errors backend works correctly. To trigger this issue requires an administrator to specifically configure ingress-nginx with a broken external component.


SourceNVD

Related Ingress NGINX Controller (community-driven) vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-4342HIGH8.8
  • Ingress NGINX Controller (community-driven)Ingress NGINX Controller (community-driven)
  • cpe:2.3:a:kubernetes:ingress-nginx
NoYesMar 19, 2026
CVE-2026-3288HIGH8.8
  • Ingress NGINX Controller (community-driven)Ingress NGINX Controller (community-driven)
  • cpe:2.3:a:kubernetes:ingress-nginx
NoYesMar 09, 2026
CVE-2025-15566HIGH8.8
  • Ingress NGINX Controller (community-driven)Ingress NGINX Controller (community-driven)
  • cpe:2.3:a:kubernetes:ingress-nginx
NoYesFeb 06, 2026
CVE-2026-24514MEDIUM6.5
  • Ingress NGINX Controller (community-driven)Ingress NGINX Controller (community-driven)
  • cpe:2.3:a:kubernetes:ingress-nginx
NoYesFeb 03, 2026
CVE-2026-24513LOW3.1
  • Ingress NGINX Controller (community-driven)Ingress NGINX Controller (community-driven)
  • cpe:2.3:a:kubernetes:ingress-nginx
NoYesFeb 03, 2026

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