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OpenAdvisories
High · 8.8 Public exploit CVE-2026-3288 EUVD-2026-10360GHSA-c56h-j8gw-3v54

ingress-nginx rewrite-target nginx configuration injection

Published Mar 9, 2026 · Updated Apr 30, 2026 · Assigned by kubernetes

Vendor: Kubernetes Product: ingress-nginx

Description

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/rewrite-target` 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.)

Affected products

VendorProductAffectedFixed
Kubernetes ingress-nginx < 1.13.8, < 1.14.4, < 1.15.0 1.13.8

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 2

References