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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
History

Fri, 12 Jun 2026 23:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 11 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring spring Web Services
Vendors & Products Spring
Spring spring Web Services

Thu, 11 Jun 2026 06:45:00 +0000

Type Values Removed Values Added
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.
Title Inbound WS-Security allows RSA PKCS#1 v1.5 key transport by default
Weaknesses CWE-327
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-06-23T19:48:50.570Z

Reserved: 2026-04-16T02:19:12.969Z

Link: CVE-2026-40996

cve-icon Vulnrichment

Updated: 2026-06-11T12:44:46.895Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-11T07:16:27.550

Modified: 2026-07-23T09:10:00.113

Link: CVE-2026-40996

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-11T10:40:19Z

Weaknesses