CVE-2016-1000027: Pivotal Spring Framework Unsafe Java Deserialization Methods
Summary
CVE-2016-1000027: Pivotal Spring Framework contains unsafe Java deserialization methods. Affects org.springframework:spring-web versions < 6.0.0. Fixed in 6.0.0. How to fix ↓
Also tracked for
- libspring-java · Debian:11
The same CVE-2016-1000027 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
Pivotal Spring Framework is a widely used Java framework that provides a comprehensive programming and configuration model for modern Java-based enterprise applications. It offers various features and components for building robust and scalable applications. However, prior to version 6.0.0, the framework contains unsafe Java deserialization methods, which can lead to a potential remote code execution (RCE) vulnerability when used with untrusted data. The impact of this vulnerability depends on how the library is implemented within a product, and authentication may be required for exploitation.
Vulnerability Detail
The vulnerability in Pivotal Spring Framework arises from its Java deserialization functionality. When untrusted data is deserialized using the framework, an attacker can potentially inject malicious code, leading to remote code execution. This can have severe consequences, such as unauthorized access, data breaches, and complete compromise of the affected system. The maintainers of the framework have acknowledged this issue and have taken steps to address it in subsequent versions. Version 4.2.6 and 3.2.17 provide enhanced documentation to guide users on precautions against unsafe Java deserialization. Version 5.3.0 deprecates the impacted classes, and version 6.0.0 removes them entirely.
How To Fix
Latest published version: 7.1.0-RC1 as of 23 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
6.0.0
This is the first release that contains the fix.
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Workaround
If upgrading to the latest version is not immediately feasible, an alternative workaround is to implement additional mitigating controls. This can include input validation and sanitization of deserialized data to prevent the execution of malicious code. It is crucial to carefully review and validate any deserialization code within your application to ensure it follows secure coding practices and does not introduce vulnerabilities.
Conclusion
Pivotal Spring Framework prior to version 6.0.0 contains unsafe Java deserialization methods, which can lead to a potential remote code execution vulnerability. It is crucial to upgrade to the latest version or implement mitigating controls to protect against this vulnerability. Regularly monitoring for open-source vulnerabilities, such as with Vulert (https://vulert.com), can help ensure timely detection and remediation of such issues. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Pivotal Spring Framework is a popular Java framework used for building enterprise applications. It provides a comprehensive programming and configuration model, along with various features and components.
Java deserialization is the process of converting serialized objects back into Java objects. It is commonly used for data persistence and inter-process communication.
The vulnerability in Pivotal Spring Framework can potentially allow remote code execution, leading to unauthorized access, data breaches, and complete compromise of the affected system.
To fix this vulnerability, it is recommended to upgrade to the latest version of Pivotal Spring Framework (6.0.0 or above), where the unsafe Java deserialization methods have been removed.
If immediate upgrade is not feasible, implementing additional mitigating controls such as input validation and sanitization of deserialized data can help reduce the risk of exploitation.
References
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