CVE-2026-4342

{"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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"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"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-4342", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-03-20T17:05:52.304343Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-20T17:05:55.340Z"}}], "cna": {"title": "ingress-nginx comment-based nginx configuration injection", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "wooseokdotkim"}], "impacts": [{"capecId": "CAPEC-176", "descriptions": [{"lang": "en", "value": "CAPEC-176 Configuration/Environment Manipulation"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/kubernetes/ingress-nginx", "vendor": "Kubernetes", "product": "ingress-nginx", "versions": [{"status": "affected", "version": "0", "lessThan": "1.13.9", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "1.14.5", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "1.15.1", "versionType": "semver"}], "defaultStatus": "affected"}], "datePublic": "2026-03-19T14:00:00.000Z", "references": [{"url": "https://github.com/kubernetes/kubernetes/issues/137893"}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "descriptions": [{"lang": "en", "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.)", "supportingMedia": [{"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.)", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20 Improper Input Validation"}]}], "providerMetadata": {"orgId": "a6081bf6-c852-4425-ad4f-a67919267565", "shortName": "kubernetes", "dateUpdated": "2026-03-19T21:50:17.878Z"}}}, "cveMetadata": {"cveId": "CVE-2026-4342", "state": "PUBLISHED", "dateUpdated": "2026-03-21T04:01:49.391Z", "dateReserved": "2026-03-17T15:35:59.315Z", "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565", "datePublished": "2026-03-19T21:50:17.878Z", "assignerShortName": "kubernetes"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"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"}]}], "source": "jordan@liggitt.net"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:kubernetes:nginx_ingress_controller:*:*:*:*:*:*:*:*", "matchCriteriaId": "82AD4893-EAC1-4B3E-A842-4C1439D0FC38", "versionEndExcluding": "1.13.9", "vulnerable": true}, {"criteria": "cpe:2.3:a:kubernetes:nginx_ingress_controller:*:*:*:*:*:*:*:*", "matchCriteriaId": "9499B75E-F160-425A-B641-61BF3B71FC57", "versionEndExcluding": "1.14.5", "versionStartIncluding": "1.14.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:kubernetes:nginx_ingress_controller:1.15.0:*:*:*:*:*:*:*", "matchCriteriaId": "7BF84B6C-C427-45A4-AE30-ED4F47F05680", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "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.)"}, {"lang": "es", "value": "Se descubri\u00f3 un problema de seguridad en ingress-nginx donde una combinaci\u00f3n de anotaciones de Ingress puede utilizarse para inyectar configuraci\u00f3n en nginx. Esto puede conducir a la ejecuci\u00f3n de c\u00f3digo arbitrario en el contexto del controlador ingress-nginx, y a la divulgaci\u00f3n de Secrets accesibles para el controlador. (Tenga en cuenta que en la instalaci\u00f3n predeterminada, el controlador puede acceder a todos los Secrets a nivel de cl\u00faster.)"}], "id": "CVE-2026-4342", "lastModified": "2026-06-17T10:56:26.790", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "jordan@liggitt.net", "type": "Secondary"}, {"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4342", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-20T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-03-19T22:16:43.143", "references": [{"source": "jordan@liggitt.net", "tags": ["Issue Tracking"], "url": "https://github.com/kubernetes/kubernetes/issues/137893"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/03/19/9"}], "sourceIdentifier": "jordan@liggitt.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "jordan@liggitt.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.13.9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.14.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.15.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "ingress-nginx", "source": "cna", "vendor": "Kubernetes"}, "product": "ingress-nginx", "vendor": "kubernetes"}], "created": "2026-03-20T08:55:27.515532+00:00", "updated": "2026-06-18T10:15:03.036995+00:00", "vendors": ["kubernetes", "kubernetes$PRODUCT$ingress-nginx"]}