@tabrex/bs58 (npm) · Malicious Code
Affects @tabrex/bs58Source GCVE Database
Malicious package : remove @tabrex/bs58 and rotate any secrets on hosts that installed it.
Data as of 14 Jul 2026, 09:34 UTC
Malicious package
Published to npm · OSV MAL-2026-10523
What to do
Remove @tabrex/bs58 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 |
|---|---|---|
| npm@tabrex/bs58 | Affected
| Fixed in– |
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Description
The @tabrex/bs58 npm package version 6.0.3 is a malicious typosquatting package impersonating the legitimate cryptocoinjs/bs58 package. It contains heavily obfuscated code that, upon import or require, respawns the Node.js process detached, downloads an encrypted binary over HTTPS, verifies and decrypts it, then executes it on the developer or build machine. This results in execution of attacker-controlled code during module load time, representing a supply-chain attack.