web3-helpers

GHSA-49r7-cr8p-v546

Malicious code in web3-helpers (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.110.234`

## Source: kam193 (8d6102ae402b2583a01da47e71f41cccba99fb7826dcf360004d8924557e1760)
During installation, package exfiltrates some basic info to a GitHub issue comment, and then attempt to set up a persistent infostealer focused on exfiltrating crypto wallets and browsers data. Likely continuation of 2026-05-py-requests


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


Campaign: 2025-06-alembic-util


Reasons (based on the campaign):


 - infostealer


 - The package overrides the install command in setup.py to execute malicious code during installation.


 - crypto-related


 - Downloads and executes a remote malicious script.


 - exfiltration-browser-data


 - exfiltration-crypto


 - persistence


 - typosquatting

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/web3-helpers/MAL-2026-3706.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/web3-helpers
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/web3-helpers/MAL-2026-3706.json
- https://github.com/advisories/GHSA-49r7-cr8p-v546

Compromised versions (1)

= 0.110.234

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.