Improper Check for Unusual or Exceptional Conditions Affecting github.com/kubernetes/ingress-nginx package, versions <1.13.7>=1.14.0 <1.14.3>=2.0.0 <4.13.7>=4.14.0 <4.14.3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMKUBERNETESINGRESSNGINX-15202058
- published4 Feb 2026
- disclosed3 Feb 2026
- creditUnknown
Introduced: 3 Feb 2026
CVE-2026-24513 Â (opens in a new tab)How to fix?
Upgrade github.com/kubernetes/ingress-nginx to version 1.13.7, 1.14.3, 4.13.7, 4.14.3 or higher.
Overview
Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions in the auth-url annotation when a specific misconfiguration occurs involving a custom-errors configuration that includes HTTP errors 401 or 403, and the configured default custom-errors backend fails to respect the X-Code HTTP header. An attacker can gain unauthorized access to resources by bypassing authentication checks.
Workaround
This vulnerability can be mitigated by checking to confirm your custom errors backend correctly respects the X-Code HTTP header.