Unmaintained Package Alert: im Crate Vulnerability
Summary
RUSTSEC-2026-0248: im is unmaintained. Affects im versions >= 0.0.0-0. No fix is published. How to fix ↓
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Background
The 'im' crate is a Rust library designed for immutable data structures, providing efficient and functional programming capabilities. It allows developers to work with persistent data structures without the overhead of copying data. However, the 'im' crate has been declared unmaintained as of May 3, 2026, following the archiving of its GitHub repository. This lack of maintenance poses significant risks to users relying on this library for their projects.
Vulnerability Detail
The vulnerability stems from the fact that the 'im' crate is no longer maintained, meaning that it will not receive updates, bug fixes, or security patches. This could lead to potential security risks if vulnerabilities are discovered in the future, as users will be unable to rely on the package for safe and secure operations. Additionally, the absence of support may lead to compatibility issues with newer versions of Rust or other dependencies.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There are no direct workarounds for the unmaintained status of the 'im' crate. The best course of action is to transition to the 'imbl' crate as mentioned in the 'how_to_fix' section.
Conclusion
The 'im' crate is now unmaintained, posing significant risks to users. It is crucial to transition to the 'imbl' crate to ensure continued support and security. By following the recommended steps, developers can safeguard their applications against potential vulnerabilities.
See every vulnerability recorded for im →
FAQ
It means that the developers will no longer provide updates, bug fixes, or security patches for the 'im' crate, which can lead to potential vulnerabilities.
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You should migrate to the 'imbl' crate, which is a maintained fork of 'im'. Update your dependencies in Cargo.toml accordingly.
Yes, using unmaintained packages can expose your application to security vulnerabilities and compatibility issues with newer software versions.
No, all versions of the 'im' crate are affected since it is unmaintained. Transitioning to a maintained alternative is the best approach.
References
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