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OpenAdvisories
Malicious MAL-2026-1222

optimal-spark-config

PyPI package · versions 14.0.0, 14.0.1, 14.0.2, 14.0.3

Reported Mar 3, 2026 · Updated Mar 23, 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 (a1c1bf78d6e3b593fd29329b4175a48c645abf4b4b63e93db68f25221329d14c)
During installation, the package starts obfuscated code that attempts to exfiltrate some basic information using DNS requests and then likely cover tracks by installing a similarly named package from private repository

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

Campaign: 2026-02-urllib-slim

Reasons (based on the campaign):

- typosquatting

- Downloads and executes a remote executable.

- obfuscation

- dependency-confusion

Indicators of compromise

Shown defanged and not clickable. Search any indicator to find other packages using it.

Domains

URLs