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OpenAdvisories
Malicious MAL-2026-2115

nspack

PyPI package · versions 0.1.0, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.1.8, 0.1.9

Reported Mar 20, 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 (7741f090145e1e4bbd7998edba9c8151bd5dd3380adaa430e8f05cb2c814396f)
These packages are used as build dependencies of malicious packages in newer waves of the campaign 2026-02-urllib-slim. They are used to split the malicious action between dependencies and are not malicious alone, but are used together to: exfiltrate information through DNS, collect information about the processes and covering tracks by installing packages from local private repositories.

Package nspack additionally notifies upon importing a domain known for malicious activity with the package and hostname.

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

Campaign: 2026-03-geekennedy

Reasons (based on the campaign):

- The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

- The malicious code is intentionally included in a dependency of the package

Indicators of compromise

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

Domains