RUSTSEC-2026-0171 `logflux` was removed from crates.io for malicious code

Not scored Published

A malicious Rust crate named logflux was published to crates.io, attempting to download and execute a payload on the user's machine.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is RUSTSEC-2026-0171?

RUSTSEC-2026-0171 is a vulnerability in logflux, published on 3 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The logflux crate attempted to download and run a malicious payload on the user's machine.

The malicious crate had 1 version published on 2026-04-26, approximately 1 month before removal, and had no evidence of actual usage. This crate had no dependencies on crates.io.

Thanks to Paweł Bis for discovering and reporting this crate!

This appears to have been part of a campaign targeting people applying for Rust jobs. Please be careful with take-home assignments, especially if they ask you to use specific dependencies.

Which versions are affected by RUSTSEC-2026-0171?

1 open source package ship an affected version, including logflux.

PackageAffectedFixed in
logflux crates.ioFrom 0.0.0-0None

How do I fix RUSTSEC-2026-0171?

No fix has been published for RUSTSEC-2026-0171 yet. Limit exposure of the affected software until one is available.

Is RUSTSEC-2026-0171 being exploited?

There is no known exploitation of RUSTSEC-2026-0171 in the wild and no public exploit code.

Sources

Is RUSTSEC-2026-0171 in your software?

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