{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4342","assignerOrgId":"a6081bf6-c852-4425-ad4f-a67919267565","state":"PUBLISHED","assignerShortName":"kubernetes","dateReserved":"2026-03-17T15:35:59.315Z","datePublished":"2026-03-19T21:50:17.878Z","dateUpdated":"2026-03-21T04:01:49.391Z"},"containers":{"cna":{"affected":[{"defaultStatus":"affected","product":"ingress-nginx","repo":"https://github.com/kubernetes/ingress-nginx","vendor":"Kubernetes","versions":[{"lessThan":"1.13.9","status":"affected","version":"0","versionType":"semver"},{"lessThan":"1.14.5","status":"affected","version":"0","versionType":"semver"},{"lessThan":"1.15.1","status":"affected","version":"0","versionType":"semver"}]}],"datePublic":"2026-03-19T14:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"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.)"}],"value":"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.)"}],"impacts":[{"capecId":"CAPEC-176","descriptions":[{"lang":"en","value":"CAPEC-176 Configuration/Environment Manipulation"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"a6081bf6-c852-4425-ad4f-a67919267565","shortName":"kubernetes","dateUpdated":"2026-03-19T21:50:17.878Z"},"references":[{"url":"https://github.com/kubernetes/kubernetes/issues/137893"}],"credits":[{"lang":"en","value":"wooseokdotkim","type":"finder"}],"source":{"discovery":"UNKNOWN"},"title":"ingress-nginx comment-based nginx configuration injection","x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/03/19/9"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-03-19T22:10:03.911Z"}},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-20T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-4342"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-21T04:01:49.391Z"}}]}}