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OpenAdvisories
Malicious MAL-2026-3411

web3-py-checksum

PyPI package · versions 1.1, 1.0

Reported May 10, 2026 · Updated Jul 9, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: kam193 (4b2052172f5c854b2e91f6bdc9336a97469cd161372621a1880d9cd1e3ad426a)
The code silently exfiltrates the private key of a crypto account.

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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-05-old-web3-py-checksum

Reasons (based on the campaign):

- crypto-related

- exfiltration-crypto