Rust advisories / polymarket-client-sdks
Vulnerability CriticalRUSTSEC-2026-0011 · polymarket-client-sdks
RUSTSEC-2026-0011: `polymarket-client-sdks` was removed from crates.io for malicious code
Short answerA security vulnerability in the polymarket-client-sdks crate: `polymarket-client-sdks` was removed from crates.io for malicious code. GitHub rates it Critical. No fixed version: replace the crate or remove the affected code path.
| Crate | polymarket-client-sdks |
|---|---|
| Type | Vulnerability (malicious) |
| Affected versions | Every version. |
| Fixed in | none |
| Severity | Critical (GitHub rating) |
| Published | 2026-02-13 |
| Last changed | 2026-03-17 |
| Also known as | GHSA-p5vf-5754-x7p3 |
What to do
- Find who pulls it in:
cargo tree -i polymarket-client-sdks. - Avoid the affected API, or replace the crate.
Details from the advisory
It appeared to be typosquatting existing crate polymarket-client-sdk (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!
References
- Package: crates.io/crates/polymarket-client-sdks
- Advisory: rustsec.org/advisories/RUSTSEC-2026-0011.html
From the RustSec Advisory Database (CC0-1.0) via the OSV export, downloaded Oct 24, 2026. Severity score computed from the published CVSS vector.
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