CVE-2026-40994
Last modified
CVE-2026-40994 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. Wss4jSecurityInterceptor initialized its BSP (WS-I Basic Security Profile) compliance flag so that inbound validation disabled WSS4J BSP enforcement on RequestData. Services that validate WS-Security on the network could therefore accept messages that violate BSP rules, weakening protocol-level checks. 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.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
Wss4jSecurityInterceptor initialized its BSP (WS-I Basic Security Profile) compliance flag so that inbound validation disabled WSS4J BSP enforcement on RequestData. Services that validate WS-Security on the network could therefore accept messages that violate BSP rules, weakening protocol-level checks. 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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Web Services | >= 5.0.0, < 5.0.1.1; >= 4.1.0, < 4.1.3.1; >= 4.0.0, < 4.0.19; >= 3.1.0, < 3.1.9 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-40994?
How severe is CVE-2026-40994?
How do I fix CVE-2026-40994?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-40988An application using spring-security-saml2-service-provider …7.5
- CVE-2026-40989Under infinite recursion in the routing layer, request-handl…6.5
- CVE-2026-40990OOM error is possible while attempting to add infinite amoun…6.5
- CVE-2026-40991When using spring-restdocs-webtestclient or spring-restdocs-…5.9
- CVE-2026-40992Spring Boot's Mail auto-configuration does not enable hostna…5
- CVE-2026-40993An attacker with write permissions to the database table man…7.2
- CVE-2026-40995X509AuthenticationProvider could issue a fully authenticated…5.4
- CVE-2026-40996Wss4jSecurityInterceptor defaulted allowRSA15KeyTransportAlg…4.8
- CVE-2026-40997Several Spring WS integration paths with Spring Security cou…5.3
- CVE-2026-40998Jaxp13XPathTemplate evaluated XPath expressions for StreamSo…8.2
- CVE-2026-40999When WS-Addressing is used with non-anonymous ReplyTo or Fau…8.6
- CVE-2026-4100The Paid Memberships Pro plugin for WordPress is vulnerable …7.1
Are you affected by CVE-2026-40994?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST