RUSTSEC-2026-0014 `rpc-check` was removed from crates.io for malicious code
A malicious Rust crate was published to steal credentials from environment variables, requiring users to remove the package.
- 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-2026-0014?
RUSTSEC-2026-0014 is a vulnerability in rpc-check, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
It was attempting to steal credentials from the POLYMARKET_PRIVATE_KEY environment variable.
The malicious crate had 3 versions published on 2026-02-15 and had been downloaded only 155 times. There were no crates depending on this crate on crates.io.
Thanks to Sisong Li for finding and reporting this to the crates.io team!
Which versions are affected by RUSTSEC-2026-0014?
1 open source package ship an affected version, including rpc-check.
| Package | Affected | Fixed in |
|---|---|---|
rpc-check crates.io | From 0.0.0-0 | None |
How do I fix RUSTSEC-2026-0014?
No fix has been published for RUSTSEC-2026-0014 yet. Limit exposure of the affected software until one is available.
Is RUSTSEC-2026-0014 being exploited?
There is no known exploitation of RUSTSEC-2026-0014 in the wild and no public exploit code.