bi-core-bi-core-core (npm) · Malicious Code
Affects bi-core-bi-core-coreSource GCVE Database
Malicious package : remove bi-core-bi-core-core and rotate any secrets on hosts that installed it.
Data as of 6 Aug 2026, 19:37 UTC
Malicious package
Published to npm · OSV MAL-2026-12829
What to do
Remove bi-core-bi-core-core 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 |
|---|---|---|
| npmbi-core-bi-core-core | 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 'bi-core-bi-core-core' version 35.8.5 is a malicious typosquatting package that downloads and executes external binaries from Cloudflare Workers and fallback domains. It disguises its payload by dynamically constructing URLs and filenames, writes executables to temporary directories, sets executable permissions, and runs them detached on both Unix and Windows systems. The package itself contains no legitimate functionality and acts as a dropper for malicious code. Any system with this package installed or running should be considered fully compromised.