Vulnerability Details CVE-2026-4342
A security issue was discovered in ingress-nginx where a combination of Ingress annotations can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 16.2%
CVSS Severity
CVSS v3 Score 8.8
References
Products affected by CVE-2026-4342
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cpe:2.3:a:kubernetes:ingress-nginx:*
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cpe:2.3:a:kubernetes:ingress-nginx:-
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cpe:2.3:a:kubernetes:ingress-nginx:0.10.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.10.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.10.2
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cpe:2.3:a:kubernetes:ingress-nginx:0.11.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.12.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.13.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.14.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.15.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.16.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.16.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.16.2
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cpe:2.3:a:kubernetes:ingress-nginx:0.17.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.17.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.18.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.19.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.20.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.21.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.22.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.23.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.24.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.24.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.25.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.25.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.26.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.26.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.26.2
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cpe:2.3:a:kubernetes:ingress-nginx:0.27.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.27.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.28.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.29.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.30.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.31.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.31.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.32.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.33.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.34.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.34.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.35.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.40.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.40.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.40.2
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cpe:2.3:a:kubernetes:ingress-nginx:0.41.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.41.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.41.2
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cpe:2.3:a:kubernetes:ingress-nginx:0.42.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.43.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.44.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.45.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.46.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.47.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.48.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.49.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.49.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.49.2
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cpe:2.3:a:kubernetes:ingress-nginx:0.49.3
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cpe:2.3:a:kubernetes:ingress-nginx:0.9.0
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cpe:2.3:a:kubernetes:ingress-nginx:0.9.1
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cpe:2.3:a:kubernetes:ingress-nginx:0.9.2
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cpe:2.3:a:kubernetes:ingress-nginx:0.9.3
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cpe:2.3:a:kubernetes:ingress-nginx:0.9.4
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cpe:2.3:a:kubernetes:ingress-nginx:0.9.5
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cpe:2.3:a:kubernetes:ingress-nginx:0.9.6
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cpe:2.3:a:kubernetes:ingress-nginx:1.0.0
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cpe:2.3:a:kubernetes:ingress-nginx:1.0.1
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cpe:2.3:a:kubernetes:ingress-nginx:1.0.2
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cpe:2.3:a:kubernetes:ingress-nginx:1.0.3
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cpe:2.3:a:kubernetes:ingress-nginx:1.0.4
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cpe:2.3:a:kubernetes:ingress-nginx:1.15.0
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cpe:2.3:a:kubernetes:ingress-nginx:1.2.0
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cpe:2.3:a:kubernetes:ingress-nginx:1.8.0
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cpe:2.3:a:kubernetes:ingress-nginx:1.9.0