py-base58 (PyPI) · Malicious Code
Affects py-base58Source GCVE Database
Malicious package : remove py-base58 and rotate any secrets on hosts that installed it.
Data as of 13 Jul 2026, 09:59 UTC
Malicious package
Published to PyPI · OSV MAL-2026-10193
What to do
Remove py-base58 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 |
|---|---|---|
| PyPIpy-base58 | Affected
| Fixed in– |
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Description
The py-base58 package versions 2.1.3 and 2.1.4 on PyPI contain malicious code that, upon import, drops and executes a hidden Linux ELF binary masquerading as a system daemon. This binary acts as a cryptocurrency wallet stealer targeting BIP-39 mnemonics and keystore files for wallets such as Phantom, MetaMask, Ledger, and Exodus. It establishes persistence via a user crontab entry and exfiltrates stolen data encrypted with an embedded RSA public key to multiple public file hosting services. The package also removes its own installation metadata to evade detection by package management tools.