Spring Framework has Authorization Bypass for Case Sensitive Comparisons
The usage of String.toLowerCase() and String.toUpperCase() has some Locale dependent exceptions that could potentially result in authorization rules not working properly.
The usage of String.toLowerCase() and String.toUpperCase() has some Locale dependent exceptions that could potentially result in authorization rules not working properly.
In Spring Framework versions 5.3.0 - 5.3.38 and older unsupported versions, it is possible for a user to provide a specially crafted Spring Expression Language (SpEL) expression that may cause a denial of service (DoS) condition. Older, unsupported versions are also affected. Specifically, an application is vulnerable when the following is true: The application evaluates user-supplied SpEL expressions.
In spring framework versions prior to 5.2.24 release+,5.3.27+ and 6.0.8+, it is possible for a user to provide a specially crafted SpEL expression that may cause a denial-of-service (DoS) condition.
In Spring Framework versions 6.0.0 - 6.0.6, 5.3.0 - 5.3.25, 5.2.0.RELEASE - 5.2.22.RELEASE, and older unsupported versions, it is possible for a user to provide a specially crafted SpEL expression that may cause a denial-of-service (DoS) condition.
n Spring Framework versions 5.3.0 - 5.3.16 and older unsupported versions, it is possible for a user to provide a specially crafted SpEL expression that may cause a denial of service condition.