Unmaintained Package Alert: number_prefix Crate Vulnerability

number_prefix Updated 19 Nov 2025

Summary

17/11/2025
N/A
No i
Unrated
Not published

RUSTSEC-2025-0119: number_prefix crate is unmaintained. Affects number_prefix versions >= 0.0.0-0. No fix is published. How to fix ↓

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Background

The number_prefix crate is a Rust library designed for converting numbers into human-readable formats with appropriate unit prefixes. It is commonly used in applications that require displaying large or small numbers in a more understandable way. However, the crate is currently unmaintained, which raises concerns about its reliability and security for developers who depend on it.

Vulnerability Detail

The vulnerability stems from the fact that the number_prefix crate is no longer actively maintained. This lack of maintenance means that any bugs, security vulnerabilities, or compatibility issues that arise will not be addressed, potentially leading to security risks in applications that utilize this crate. Developers relying on this crate may face challenges in ensuring the security and functionality of their applications over time.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

If immediate migration is not feasible, consider isolating the use of the number_prefix crate within a controlled environment and monitor its usage closely. However, this is not a long-term solution and should only be a temporary measure.

Conclusion

The number_prefix crate is currently unmaintained, posing potential risks for applications that rely on it. Developers are encouraged to transition to the unit-prefix crate to ensure ongoing support and security. Utilizing tools like Vulert can help monitor for vulnerabilities in your dependencies.

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FAQ

It means that the developers are no longer providing updates, bug fixes, or security patches for the crate, which can lead to potential vulnerabilities.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. You can check your application's Cargo.lock file using the Vulert playground without any signup.

Using an unmaintained crate can expose your application to security vulnerabilities, bugs, and compatibility issues that will not be resolved.

Yes, the recommended alternative is the unit-prefix crate, which is actively maintained and provides similar functionality.

If immediate migration is not possible, isolate the usage of the number_prefix crate and monitor its usage closely while planning for a future migration.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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