https://seclists.org/oss-sec/2026/q1/289: [kubernetes] CVE-2026-3288: ingss-nginx write-target nginx configuration injection
Published Mar 9, 2026
·Updated
Affected Software
1 affected component
kubernetes/ingress-nginx<1.13.8, <1.14.4, <1.15.0
Frequently Asked Questions
1
What is the severity of CVE-2026-3288?
CVE-2026-3288 is classified as a high severity vulnerability due to the potential for arbitrary code execution.
2
How do I fix CVE-2026-3288?
To fix CVE-2026-3288, update to the latest version of ingress-nginx where the vulnerability has been patched.
3
What impact does CVE-2026-3288 have on my Kubernetes deployment?
CVE-2026-3288 can allow an attacker to inject malicious configuration, potentially leading to unauthorized access and code execution within the ingress-nginx controller.
4
Is CVE-2026-3288 specific to certain ingress-nginx configurations?
Yes, CVE-2026-3288 is related to the misuse of the nginx.ingress.kubernetes.io/rewrite-target annotation.
5
Can I mitigate CVE-2026-3288 if I cannot upgrade immediately?
Temporary mitigation for CVE-2026-3288 includes reviewing and tightening access controls around your ingress resources and disabling the affected annotation if possible.