CVE-2026-40996
Medium
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. 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.
SeverityMedium
CVSS4.8
Exploit probability—
Product
Broadcom Spring Web Services
PublishedJun 11, 2026
First seenJun 11, 2026
Weakness typeCWE-327CWE-327
How to fix
Update
- broadcom spring_web_services3.1.9, 4.0.19, 4.1.3.1, 5.0.1.1 or later
- org.springframework.ws:spring-ws-security5.0.2, 4.1.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| broadcom spring_web_services | v < 3.1.9, 4.0.0 ≤ v < 4.0.19, 4.1.0 ≤ v < 4.1.3.1, 5.0.0 ≤ v < 5.0.1.1 | 3.1.9, 4.0.19, 4.1.3.1, 5.0.1.1 |
| org.springframework.ws:spring-ws-securityMaven | 5.0.0 ≤ v < 5.0.2, 4.1.0 ≤ v < 4.1.4, 4.0.0 ≤ v ≤ 4.0.18, 3.1.0 ≤ v ≤ 3.1.8 | 5.0.2, 4.1.4 |
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