bs58-11 (npm) · Malicious Code
Affects bs58-11Source GCVE Database
Malicious package : remove bs58-11 and rotate any secrets on hosts that installed it.
Data as of 12 Aug 2026, 17:00 UTC
Malicious package
Published to npm · OSV MAL-2026-13758
What to do
Remove bs58-11 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 |
|---|---|---|
| npmbs58-11 | 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 bs58-11 is a malicious package published under a name resembling the legitimate bs58 module. It contains a minimal wrapper that requires another suspicious dependency, base65-11x, which is not included in the tarball. The package itself does not contain direct malicious code, but the included dependency may execute harmful actions. Any system with this package installed should be considered fully compromised, and all secrets and keys must be rotated immediately. Removal of the package alone may not eliminate all malicious software resulting from its installation.