{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40996", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-04-16T02:19:12.969Z", "datePublished": "2026-06-11T05:04:05.227Z", "dateUpdated": "2026-06-11T12:44:51.674Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-06-11T05:04:05.227Z"}, "title": "Inbound WS-Security allows RSA PKCS#1 v1.5 key transport by default", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-327", "description": "CWE-327: Use of a Broken or Risky Cryptographic Algorithm", "type": "CWE"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "An attacker in a man-in-the-middle or oracle-capable position can exploit the weak RSA PKCS#1 v1.5 key transport algorithm accepted by default for inbound WS-Security decryption."}]}], "affected": [{"vendor": "Spring", "product": "Spring Web Services", "defaultStatus": "unaffected", "versions": [{"status": "affected", "version": "5.0.0", "lessThan": "5.0.2", "versionType": "custom"}, {"status": "affected", "version": "4.1.0", "lessThan": "4.1.4", "versionType": "custom"}, {"status": "affected", "version": "4.0.0", "lessThan": "4.0.19", "versionType": "custom"}, {"status": "affected", "version": "3.1.0", "lessThan": "3.1.9", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Wss4jSecurityInterceptor defaulted allowRSA15KeyTransportAlgorithm to true, overriding Apache WSS4J's safer default for validation RequestData. Inbound WS-Security decryption could therefore accept RSA PKCS#1 v1.5 (rsa-1_5) encrypted key material unless operators explicitly reconfigured the flag.\n\nAffected versions:\nSpring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Wss4jSecurityInterceptor defaulted allowRSA15KeyTransportAlgorithm to true, overriding Apache WSS4J's safer default for validation RequestData. Inbound WS-Security decryption could therefore accept RSA PKCS#1 v1.5 (rsa-1_5) encrypted key material unless operators explicitly reconfigured the flag.\n\nAffected versions:\nSpring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8."}]}], "references": [{"url": "https://spring.io/security/cve-2026-40996"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-11T12:44:42.180161Z", "id": "CVE-2026-40996", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-06-11T12:44:51.674Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Wss4jSecurityInterceptor defaulted allowRSA15KeyTransportAlgorithm to true, overriding Apache WSS4J's safer default for validation RequestData. Inbound WS-Security decryption could therefore accept RSA PKCS#1 v1.5 (rsa-1_5) encrypted key material unless operators explicitly reconfigured the flag.\n\nAffected versions:\nSpring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8."}], "id": "CVE-2026-40996", "lastModified": "2026-06-11T15:21:30.653", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 2.5, "source": "security@vmware.com", "type": "Secondary"}]}, "published": "2026-06-11T07:16:27.550", "references": [{"source": "security@vmware.com", "url": "https://spring.io/security/cve-2026-40996"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-327"}], "source": "security@vmware.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.0.0,5.0.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.1.0,4.1.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,4.0.19)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.1.0,3.1.9)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Spring Web Services", "source": "cna", "vendor": "Spring"}, "product": "spring_web_services", "vendor": "spring"}], "created": "2026-06-11T07:30:08.608411+00:00", "updated": "2026-06-11T10:40:19.814518+00:00", "vendors": ["spring", "spring$PRODUCT$spring_web_services"]}