Unmaintained Package Alert: im-rc Vulnerability
Summary
RUSTSEC-2026-0250: im-rc is unmaintained. Affects im-rc versions >= 0.0.0-0. No fix is published. How to fix ↓
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Background
The im-rc crate is a Rust library designed for immutable reference counting, allowing efficient management of memory in concurrent programming scenarios. It was widely used for its performance and safety features. However, as of May 3, 2026, the GitHub repository for im-rc has been archived, indicating that it is no longer maintained. This lack of maintenance raises concerns about security vulnerabilities that may not be addressed in the future.
Vulnerability Detail
The vulnerability stems from the fact that the im-rc crate is unmaintained, meaning that any security flaws or bugs discovered in the future will not be patched. This poses a significant risk to applications relying on this crate, as they may become susceptible to exploitation. The absence of updates can lead to compatibility issues with newer versions of Rust or other dependencies, further complicating the security landscape for users of im-rc.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds for the im-rc crate since it is unmaintained. The best course of action is to transition to a maintained alternative like imbl.
Conclusion
The im-rc crate is now unmaintained, posing significant risks to applications that depend on it. Users are encouraged to transition to the imbl crate to ensure ongoing support and security. Regular monitoring for vulnerabilities using tools like Vulert can help maintain application security.
See every vulnerability recorded for im-rc →
FAQ
It means that the developers are no longer providing updates, bug fixes, or security patches for the im-rc crate.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.
It is advisable to migrate to a maintained alternative like imbl to ensure your application remains secure and up-to-date.
Yes, unmaintained packages can lead to security vulnerabilities, compatibility issues, and lack of support for new features or bug fixes.
No, there is no patch available for im-rc since it is unmaintained. The recommended action is to switch to a maintained alternative.
