CVE-2026-40996

MEDIUM EPSS 2.9%

Published Jun 11, 20263w ago · Modified Jun 23, 20261w ago

4.8 CVSS 3.1

Medium

Published Jun 11, 2026 3w ago

Last Modified Jun 23, 2026 1w ago

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.

CVSS Details

Base Score

4.8

Exploitability

2.2

Impact

2.5

Vector string

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector Network

Attack Complexity High

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality Low

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

2.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-327

References 1

spring.io https://spring.io/security/cve-2026-40996

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.