Spring Framework Vulnerability CVE-2025-22233: Bypass of Disallowed Fields Checks
Summary
CVE-2025-22233: CVE-2024-38820 ensured Locale-independent, lowercase conversion for both the configured disallowedFields patterns and for request parameter names. Affects libspring-java versions 4.3.30-1 – 4.3.30-3. No fix is published. How to fix ↓
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Background
The Spring Framework is a powerful framework for building Java applications, providing comprehensive infrastructure support for developing Java applications. It offers features such as dependency injection, aspect-oriented programming, and transaction management. However, certain versions of the Spring Framework are vulnerable to a security issue that allows bypassing checks on disallowed fields, potentially leading to unauthorized data access.
Vulnerability Detail
CVE-2025-22233 arises from the failure to adequately enforce disallowed fields checks in the Spring Framework. Despite improvements in locale-independent, lowercase conversion for disallowed fields and request parameter names, certain scenarios still allow attackers to bypass these checks. This vulnerability affects multiple versions of the Spring Framework, potentially leading to unauthorized access to sensitive data, which could compromise application integrity and user privacy.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, it is recommended to use a dedicated model object with properties specifically for data binding or to utilize constructor binding. This approach ensures that only explicitly declared properties are bound, enhancing security. Additionally, consider using an explicit list of allowed fields instead of disallowed fields to further mitigate risks.
Conclusion
CVE-2025-22233 represents a significant security risk for users of the Spring Framework, allowing unauthorized access to sensitive data through bypassed checks on disallowed fields. It is crucial for users to upgrade to the patched versions and consider implementing recommended workarounds to enhance security.
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FAQ
CVE-2025-22233 is a vulnerability in the Spring Framework that allows bypassing checks on disallowed fields, potentially leading to unauthorized data access.
Affected versions include Spring Framework 6.2.0 - 6.2.6, 6.1.0 - 6.1.19, 6.0.0 - 6.0.27, and 5.3.0 - 5.3.42, along with older unsupported versions.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. By uploading your manifest file like package-lock.json, you can check for vulnerabilities without needing to access the code.
If immediate upgrading is not possible, consider implementing the recommended workarounds, such as using a dedicated model object for data binding or constructor binding to limit data exposure.
Detailed information about CVE-2025-22233 can be found in the official Spring Framework documentation and security advisories.
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