Kurz gesagt
- CVE-2026-24513 ist eine Schwachstelle (NIEDRIG (CVSS 3.1)) in k8s.io/ingress-nginx.
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.34%, höher als bei 27.0% aller Schwachstellen.
- Abhilfe: auf 1.14.3, 1.13.7 oder neuer aktualisieren.
| Package | Affected versions | Patched versions |
|---|
| k8s.io/ingress-nginx Go | ≥ 1.14.0, < 1.14.3< 1.13.7all versions
| 1.14.31.13.7
|
Description
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. Triggering this issue requires an administrator to specifically configure ingress-nginx with a broken external component.
NVD description
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.
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