Is there a public exploit for CVE-2023-5044?

Yes. Proof-of-concept code for CVE-2023-5044 has been published publicly.

Is there a proof of concept for CVE-2023-5044?

Yes — 3 proof-of-concept entries are linked on this page, from public repositories and community submissions. They are listed for authorised testing only.

How severe is CVE-2023-5044?

CVE-2023-5044 scores CVSS 8.8 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 59.56%.

What does CVE-2023-5044 affect?

CVE-2023-5044 affects Kubernetes k8s.io/ingress-nginx.

8.8 High

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

CVE-2023-5044

A security issue was identified in [ingress-nginx](https://github.com/kubernetes/ingress-nginx) where the nginx.ingress.kubernetes.io/permanent-redirect annotation on an Ingress object (in the networking.k8s.io or extensions API group) can be used to inject arbitrary commands, and obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.

Proof-of-concept code is published

Public PoC

Public PoCr0binak/CVE-2023-50444 stars
Public PoC4ARMED/cve-2023-50442 stars
Public PoCKubernetesBachelor/CVE-2023-5044

Signals come from Exploit-DB, Metasploit, Nuclei and published proof-of-concept repositories. Their absence means nothing was found, not that nothing exists.

Assessment

CVSS: 8.8 (v3.1)
Severity: High
EPSS: 59.56% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Public PoC
Published: 25 October 2023
Last updated: 17 June 2026
Affected: Kubernetes · ingress-nginx · k8s.io/ingress-nginx
Weakness: CWE-20, CWE-94
Assigner: jordan@liggitt.net

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

At the source

References

Community proofs of concept

No community proof of concept yet. If you have one for a published vulnerability and the right to share it, add it below — it will appear here once reviewed.

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Before you submit * This vulnerability is already publicly disclosed (it has a published CVE). This material comes only from testing I was authorised to perform. I have the legal right to publish this content and am not breaching any agreement by doing so. It contains no live credentials, personal data, or anything targeting systems I am not authorised to test. I understand it will be reviewed before it appears publicly and may be rejected. I agree to the submission terms.

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