bs58-13 (npm) · Malicious Code
Affects bs58-13Source GCVE Database
Malicious package : remove bs58-13 and rotate any secrets on hosts that installed it.
Data as of 12 Aug 2026, 16:59 UTC
Malicious package
Published to npm · OSV MAL-2026-13760
What to do
Remove bs58-13 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 |
|---|---|---|
| npmbs58-13 | 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 bs58-13 is a malicious package impersonating the popular base58 encoding library bs58. Instead of providing legitimate functionality, it requires a similarly named malicious dependency base65-13x. Installing bs58-13 results in the installation of this malicious dependency, which can lead to full system compromise. Any system with this package installed should be considered compromised, and all secrets and keys must be rotated immediately. Removal of the package alone may not eliminate the malicious presence due to potential persistent backdoors or additional malware.