CVE-2026-40976

A flaw was found in Spring Boot. Under specific conditions, including being a servlet-based web application without custom Spring Security configuration and relying on the default web security filter chain, a remote attacker could bypass security. This allows unauthorized access to all applicatio...

CVE-2026-40976

CVE-2026-40976 affects Spring Boot 4.0.0–4.0.5. In vulnerable configurations, a servlet-based web application that relies on Spring Boot’s default web security (no custom Spring Security config), depends on spring-boot-actuator-autoconfigure, and does not rely on spring-boot-health can experience...

Missing Authorization

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 ha...