Missing Authorization Affecting org.springframework.boot:spring-boot-security package, versions [,4.0.6)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published24 Apr 2026
- disclosed23 Apr 2026
- creditUnknown
Introduced: 23 Apr 2026
CVE-2026-40976 (opens in a new tab)How to fix?
Upgrade org.springframework.boot:spring-boot-security to version 4.0.6 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization causing web security to be ineffective and allowing unauthorized access to all endpoints.
Note:
This is only exploitable if the following conditions are met:
the application is servlet-based;
the application has no Spring Security configuration of its own and relies on the default web security filter chain;
the application does not depend on spring-boot-health.