What is CVE-2026-1580?

CVE-2026-1580 is a high-severity vulnerability in Kubernetes Ingress-nginx, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2026-02-03.

How severe is CVE-2026-1580?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in Kubernetes Ingress-nginx

CVE-2026-1580

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-method` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (16.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Kubernetes Ingress-nginx — versions 0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/kubernetes/kubernetes/issues/136677

Frequently asked questions

What is CVE-2026-1580?: CVE-2026-1580 is a high-severity vulnerability in Kubernetes Ingress-nginx, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2026-02-03.
How severe is CVE-2026-1580?: High severity. CVSS v3 base score is 8.8 out of 10.