RUSTSEC-2026-0259 `arone` was removed from crates.io due to malicious code
The arone Rust crate contained malicious code executed during build, allowing attackers to run arbitrary code on developer machines.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is RUSTSEC-2026-0259?
RUSTSEC-2026-0259 is a vulnerability in arone, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
We identified that arone contained malicious code executed through a build
script.
This crate had 7 versions, with the most recent one being published at 2026-08-18. The crate was removed from crates.io on 2026-08-20 and the user account was locked.
This crate was used as part of a malware campaign targeted at users of
arrayref, which was downloaded 2,285 times before being removed; see
the arrayref advisory for more detail.
Which versions are affected by RUSTSEC-2026-0259?
1 open source package ship an affected version, including arone.
| Package | Affected | Fixed in |
|---|---|---|
arone crates.io | From 0.0.0-0 | None |
How do I fix RUSTSEC-2026-0259?
No fix has been published for RUSTSEC-2026-0259 yet. Limit exposure of the affected software until one is available.
Is RUSTSEC-2026-0259 being exploited?
There is no known exploitation of RUSTSEC-2026-0259 in the wild and no public exploit code.