{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-11311", "assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "state": "PUBLISHED", "assignerShortName": "f5", "dateReserved": "2026-06-04T18:01:54.825Z", "datePublished": "2026-06-17T14:04:33.197Z", "dateUpdated": "2026-06-17T15:42:37.296Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "modules": ["Custom Resource Definitions"], "product": "NGINX Gateway Fabric", "vendor": "F5", "versions": [{"lessThan": "2.6.4", "status": "affected", "version": "2.5.0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "F5"}], "datePublic": "2026-06-17T14:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the </span><strong>NginxProxy</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;Custom Resource Definition </span><strong>serverTokens</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;field and the </span><strong>AuthenticationFilter</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;Custom Resource Definition </span><strong>extraAuthArgs</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;field are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these Custom Resource Definitions may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself.</span> \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "value": "When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the NginxProxy\u00a0Custom Resource Definition serverTokens\u00a0field and the AuthenticationFilter\u00a0Custom Resource Definition extraAuthArgs\u00a0field are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these Custom Resource Definitions may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself. \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "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:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.6, "baseSeverity": "HIGH", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-76", "description": "CWE-76 Improper Neutralization of Equvalent Special Elements", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "shortName": "f5", "dateUpdated": "2026-06-17T14:04:33.197Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://my.f5.com/manage/s/article/K000161611"}], "source": {"discovery": "INTERNAL"}, "tags": ["x_F5"], "title": "NGINX Gateway Fabric vulnerability", "x_generator": {"engine": "F5 SIRTBot v1.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-17T15:42:03.715663Z", "id": "CVE-2026-11311", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-17T15:42:37.296Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-11311", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-06-17T15:42:03.715663Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-17T15:42:32.938Z"}}], "cna": {"tags": ["x_F5"], "title": "NGINX Gateway Fabric vulnerability", "source": {"discovery": "INTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "F5"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "F5", "modules": ["Custom Resource Definitions"], "product": "NGINX Gateway Fabric", "versions": [{"status": "affected", "version": "2.5.0", "lessThan": "2.6.4", "versionType": "custom"}], "defaultStatus": "unknown"}], "datePublic": "2026-06-17T14:00:00.000Z", "references": [{"url": "https://my.f5.com/manage/s/article/K000161611", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "F5 SIRTBot v1.0"}, "descriptions": [{"lang": "en", "value": "When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the NginxProxy\u00a0Custom Resource Definition serverTokens\u00a0field and the AuthenticationFilter\u00a0Custom Resource Definition extraAuthArgs\u00a0field are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these Custom Resource Definitions may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself. \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.", "supportingMedia": [{"type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the </span><strong>NginxProxy</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;Custom Resource Definition </span><strong>serverTokens</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;field and the </span><strong>AuthenticationFilter</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;Custom Resource Definition </span><strong>extraAuthArgs</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;field are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these Custom Resource Definitions may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself.</span> \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-76", "description": "CWE-76 Improper Neutralization of Equvalent Special Elements"}]}], "providerMetadata": {"orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "shortName": "f5", "dateUpdated": "2026-06-17T14:04:33.197Z"}}}, "cveMetadata": {"cveId": "CVE-2026-11311", "state": "PUBLISHED", "dateUpdated": "2026-06-17T15:42:37.296Z", "dateReserved": "2026-06-04T18:01:54.825Z", "assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "datePublished": "2026-06-17T14:04:33.197Z", "assignerShortName": "f5"}, "dataVersion": "5.2"}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.5.0,2.6.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "NGINX Gateway Fabric", "source": "cna", "vendor": "F5"}, "product": "nginx_gateway_fabric", "vendor": "f5"}], "created": "2026-06-18T18:30:15.048779+00:00", "updated": "2026-06-18T18:30:15.048813+00:00", "vendors": ["f5", "f5$PRODUCT$nginx_gateway_fabric"]}