Authentication Flaw in Spring Web Services by Pivotal Software
CVE-2026-40995

5.4MEDIUM

Key Information:

Vendor

Spring

Status
Spring Web Services
Vendor
CVE Published:
11 June 2026

What is CVE-2026-40995?

An authentication vulnerability exists in Spring Web Services which potentially allows an attacker to obtain a fully authenticated X509AuthenticationToken without undergoing standard account lifecycle checks. This occurs when a certificate is presented and mapped to UserDetails, bypassing essential security mechanisms. As a result, accounts deemed as disabled, locked, expired, or with expired credentials may not be properly respected, leading to unauthorized access scenarios.

Affected Version(s)

Spring Web Services 5.0.0 < 5.0.1.1

Spring Web Services 4.1.0 < 4.1.3.1

Spring Web Services 4.0.0 < 4.0.19

References

https://spring.io/security/cve-2026-40995

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.