hardhat-set (npm) · Malicious Code
Affects hardhat-setSource GCVE Database
Malicious package : remove hardhat-set and rotate any secrets on hosts that installed it.
Data as of 7 Aug 2026, 15:20 UTC
Malicious package
Published to npm · OSV MAL-2026-13609
What to do
Remove hardhat-set from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmhardhat-set | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
The npm package 'hardhat-set' version 2.21.0 is a malicious typosquatting package masquerading as a legitimate project. It contains a large, heavily obfuscated JavaScript payload that executes immediately upon import. The package's README and documentation are copied from an unrelated project (pino logger), and the author information points to an unrelated domain, indicating deception. This package delivers a hidden payload to users who install or require it.