CVE-2026-1580

HIGH

K8s.io Ingress-nginx < 1.13.7 - Improper Input Validation

Title source: rule
STIX 2.1

Description

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-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)

Scores

CVSS v3 8.8
EPSS 0.0005
EPSS Percentile 15.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-20
Status published
Products (3)
k8s.io/ingress-nginx 0 - 1.13.7Go
Kubernetes/ingress-nginx < 1.13.7
Kubernetes/ingress-nginx < 1.14.3
Published Feb 03, 2026
Tracked Since Feb 18, 2026