{"cve":"CVE-2026-40996","nvd":{"published":"2026-06-11T07:16:27.550","modified":"2026-09-04T17:08:43.050","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","score":4.8},"cwes":["CWE-327"],"references":["https://spring.io/security/cve-2026-40996"],"products":["broadcom:spring_web_services"],"source":"nvd","synced_at":"2026-10-19T22:38:48.522727527+00:00"},"epss":{"cve":"CVE-2026-40996","score":0.00129,"percentile":0.02506,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-p7qj-2q5w-f9r7","url":"https://osv.dev/vulnerability/GHSA-p7qj-2q5w-f9r7","summary":"Spring Web Services: Inbound WS-Security allows RSA PKCS#1 v1.5 key transport by default","modified":"2026-08-21T19:25:58.944539Z","packages":[{"ecosystem":"Maven","name":"org.springframework.ws:spring-ws-security","purl":"pkg:maven/org.springframework.ws/spring-ws-security","ranges":[">=5.0.0 <5.0.2"],"fixed":["5.0.2"]},{"ecosystem":"Maven","name":"org.springframework.ws:spring-ws-security","purl":"pkg:maven/org.springframework.ws/spring-ws-security","ranges":[">=4.1.0 <4.1.4"],"fixed":["4.1.4"]},{"ecosystem":"Maven","name":"org.springframework.ws:spring-ws-security","purl":"pkg:maven/org.springframework.ws/spring-ws-security","ranges":[">=4.0.0 <=4.0.18"],"fixed":[]},{"ecosystem":"Maven","name":"org.springframework.ws:spring-ws-security","purl":"pkg:maven/org.springframework.ws/spring-ws-security","ranges":[">=3.1.0 <=3.1.8"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}