CVE-2024-38827
CVE-2024-38827
Description
The vulnerability relates to the use of String.toLowerCase() and String.toUpperCase() in authorization logic, which may result in security bypass due to locale-dependent behavior.
Impact
When using locale-sensitive string case conversion methods in security-critical code paths like role or authority checks, attackers could potentially bypass authorization controls in certain locales. This happens because character mappings between upper and lower case can differ across locales.
Assessment
Our application uses Spring Security version 5.8.15, which is listed as affected in the official advisory. However, after code review, we did not identify any instances where String.toLowerCase() or String.toUpperCase() methods are used in role or authority checks within our codebase.