GHSA-99j7-fhr2-xfj4 `exploration` was removed from crates.io for malicious code
A malicious Rust crate on crates.io attempted to download and execute remote payloads, posing a supply chain risk to developers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GHSA-99j7-fhr2-xfj4?
GHSA-99j7-fhr2-xfj4 is a vulnerability in exploration, published on 2 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A method within the exploration crate attempted to download and execute a payload from a remote site.
The malicious crate had 1 version published on 2026-06-02, approximately 1 hour before removal, and had no evidence of actual usage. This crate had no dependencies on crates.io.
Rustsec to Kirill Boychenko from the Socket Threat Research Team for reporting this crate.
Which versions are affected by GHSA-99j7-fhr2-xfj4?
3 open source packages ship an affected version, including exploration.
| Package | Affected | Fixed in |
|---|---|---|
exploration crates.io | All versions | None |
exploration crates.io | All versions | None |
exploration crates.io | From 0.0.0-0 | None |
How do I fix GHSA-99j7-fhr2-xfj4?
No fix has been published for GHSA-99j7-fhr2-xfj4 yet. Limit exposure of the affected software until one is available.
Is GHSA-99j7-fhr2-xfj4 being exploited?
There is no known exploitation of GHSA-99j7-fhr2-xfj4 in the wild and no public exploit code.
Sources
Also known as RUSTSEC-2026-0155.