{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40460", "assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "state": "PUBLISHED", "assignerShortName": "f5", "dateReserved": "2026-04-30T23:04:27.969Z", "datePublished": "2026-05-13T14:12:45.291Z", "dateUpdated": "2026-05-13T16:06:43.631Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "modules": ["ngx_quic_module"], "product": "NGINX Plus", "vendor": "F5", "versions": [{"lessThan": "*", "status": "unaffected", "version": "R37", "versionType": "custom"}, {"lessThan": "R36 P4", "status": "affected", "version": "R36", "versionType": "custom"}, {"lessThan": "R32 P6", "status": "affected", "version": "R32", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "modules": ["ngx_quic_module"], "product": "NGINX Open Source", "vendor": "F5", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1.31.0", "versionType": "semver"}, {"lessThan": "1.30.1", "status": "affected", "version": "1.26.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "F5 acknowledges Rodrigo Laneth of Miralium Research for bringing this issue to our attention and following the highest standards of coordinated disclosure."}], "datePublic": "2026-05-13T14:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">When NGINX Plus or NGINX Open Source are configured to use the </span><strong>HTTP/3 QUIC</strong><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting.&nbsp;&nbsp;</span>Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "value": "When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC\u00a0module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting.\u00a0\u00a0Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L", "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": 6.9, "baseSeverity": "MEDIUM", "privilegesRequired": "NONE", "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:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-290", "description": "CWE-290 Authentication Bypass by Spoofing", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "shortName": "f5", "dateUpdated": "2026-05-13T14:12:45.291Z"}, "references": [{"tags": ["vendor-advisory", "patch"], "url": "https://my.f5.com/manage/s/article/K000161068"}], "source": {"discovery": "EXTERNAL"}, "title": "NGINX ngx_quic_module vulnerability", "x_generator": {"engine": "F5 SIRTBot v1.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-13T15:54:59.053463Z", "id": "CVE-2026-40460", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-13T16:06:43.631Z"}}]}}

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