#VU122286 Code Injection in Ingress-NGINX Controller for Kubernetes - CVE-2026-1580
Published: February 4, 2026
Vulnerability identifier: #VU122286
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-1580
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Ingress-NGINX Controller for Kubernetes
Ingress-NGINX Controller for Kubernetes
Software vendor:
Kubernetes
Kubernetes
Description
The vulnerability allows a remote user to compromise the affected system.
The vulnerability exists due to improper input validation leading to configuration injection 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.
Remediation
Install updates from vendor's website.