High severity · published Jun 11, 2026
CVE-2026-40994
Wss4jSecurityInterceptor disables WS-I BSP validation by default
8.2
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SW
Spring Web Services · Spring
5.0.0 before 5.0.1.1; 4.1.0 before 4.1.3.1; 4.0.0 before 4.0.19; 3.1.0 before 3.1.9 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40994
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40994
Vendor Advisory
https://spring.io/security/cve-2026-40994
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