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Fencer Vulns
high 8.8

CVE-2022-4886 json

Ingress-nginx `path` sanitization can be bypassed with `log_format` directive

published 2023-10-25 3 y ago modified 2026-08-07 3 mo ago also GHSA-gvrm-w2f9-f77q , EUVD-2023-2743

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Ingress-nginx `path` sanitization can be bypassed with `log_format` directive.

Patch / fix

  • go k8s.io/ingress-nginx 1.8.0
  • Kubernetes ingress-nginx 1.8.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

1.66% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go k8s.io/ingress-nginx
<1.8.0
1.8.0

Affected products

  • Kubernetes ingress-nginx

Classification

Weakness
  • CWE-20 Improper Input Validation
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.