Wss4jSecurityInterceptor disables WS-I BSP validation by default

published 2026-06-11 4 mo ago modified 2026-09-04 2 mo ago also GHSA-gg9r-wr4p-w63h , EUVD-2026-36204

cvss: 8.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits: 0; none known

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.

Patch / fix

fixed in 2

maven org.springframework.ws:spring-ws-security 4.1.4, 5.0.2
Spring Spring Web Services 3.1.9, 4.0.19, 4.1.3.1, 5.0.1.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-40994 updated 2026-10-09 cvss 8.2

org.springframework.ws/spring-ws-security: Spring Web Services: Weakening of WS-Security protocol checks due to disabled BSP enforcement

Red Hat Fuse 7 spring-ws-security
not affected: vulnerable code not in execute path

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 4 mo ago (2026-06-11)

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
GitHub	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.springframework.ws:spring-ws-security	>=5.0.0, <5.0.2 >=4.1.0, <4.1.4 >=4.0.0, <=4.0.18 >=3.1.0, <=3.1.8	5.0.2 4.1.4

Affected products

Spring Spring Web Services

Classification

Weakness

CWE-1188 Initialization of a Resource with an Insecure Default

References

spring.io /security/cve-2026-40994
web, vendor-advisory, mitigation
nvd.nist.gov /vuln/detail/CVE-2026-40994
advisory
github.com /spring-projects/spring-ws
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary