CVE-2026-4342 — ingress-nginx comment-based nginx configuration injection
A security issue was discovered in ingress-nginx where a combination of Ingress annotations can be used to inject configuration into nginx. This can lead to arbitrary code execu…
Published: 2026-03-19 · CVSS: 8.8 · CVSS 3.1
A security issue was discovered in ingress-nginx where a combination of Ingress annotations 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.)
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7