CVE-2026-40996

EUVD-2026-36206
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.

Affected versions:
Spring 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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.8 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 2.86%
Affected Products (NVD)
VendorProductVersion
broadcomspring_web_services
𝑥
< 3.1.9
broadcomspring_web_services
4.0.0 ≤
𝑥
< 4.0.19
broadcomspring_web_services
4.1.0 ≤
𝑥
< 4.1.3.1
broadcomspring_web_services
5.0.0 ≤
𝑥
< 5.0.1.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://spring.io/security/cve-2026-40996