Advisories for Maven/Org.springframework/Spring-Context package

CVE-2024-38820 ensured Locale-independent, lowercase conversion for both the configured disallowedFields patterns and for request parameter names. However, there are still cases where it is possible to bypass the disallowedFields checks. Affected Spring Products and Versions Spring Framework: 6.2.0 - 6.2.6 6.1.0 - 6.1.19 6.0.0 - 6.0.27 5.3.0 - 5.3.42 Older, unsupported versions are also affected Mitigation Users of affected versions should upgrade to the corresponding fixed version. | Affected version(s) …

The usage of String.toLowerCase() and String.toUpperCase() has some Locale dependent exceptions that could potentially result in authorization rules not working properly.

The fix for CVE-2022-22968 made disallowedFields patterns in DataBinder case insensitive. However, String.toLowerCase() has some Locale dependent exceptions that could potentially result in fields not protected as expected.

In Spring Framework versions 5.3.0 - 5.3.18, 5.2.0 - 5.2.20, and older unsupported versions, the patterns for disallowedFields on a DataBinder are case sensitive which means a field is not effectively protected unless it is listed with both upper and lower case for the first character of the field, including upper and lower case for the first character of all nested fields within the property path.