It appeared to be typosquatting existing crate <code>polymarket-client-sdk</code> (sdks vs sdk) and attempting to steal credentials from local files.
The malicious crate had 1 version published on 2026-02-09 and had been downloaded only 33 times. There were no crates depending on this crate on crates.io.
Thanks to Roland Peelen for finding and reporting this to the crates.io team!
{
"github_reviewed_at": "2026-02-13T21:02:38Z",
"severity": "CRITICAL",
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"nvd_published_at": null
}