CVE-2023-5044 — Code injection via nginx

Code injection via nginx.ingress.kubernetes.io/permanent-redirect annotation.

01What is this vulnerability?

Code injection via nginx.ingress.kubernetes.io/permanent-redirect annotation.

02Affected products

Vendor	Product	Versions
Kubernetes	ingress	nginx — 0, 1.9.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-10-25T19:19:08.139Z
• Last modified: 2025-06-12T14:53:17.540Z

09References

• github.com — https://github.com/kubernetes/ingress-nginx/issues/10572
• groups.google.com — https://groups.google.com/g/kubernetes-security-announce/c/ukuYYvRNel0
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/10/25/3
• security.netapp.com — https://security.netapp.com/advisory/ntap-20240307-0012/