Skip to content
Fencer Vulns
high 7.6

CVE-2023-5043 json

Ingress nginx annotation injection causes arbitrary command execution

published 2023-10-25 3 y ago modified 2026-08-07 3 mo ago also GHSA-5wj4-wffq-3378 , EUVD-2023-2661

cvss
7.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

Ingress nginx annotation injection causes arbitrary command execution.

Patch / fix

  • go k8s.io/ingress-nginx 1.9.0
  • Kubernetes ingress-nginx 1.9.0

Exploit prediction

2.49% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 7.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

Affected packages

ecosystem package affected fixed in
go k8s.io/ingress-nginx
<1.9.0
1.9.0

Affected products

  • Kubernetes ingress-nginx

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.