Skip to content
OpenAdvisories
Malicious MAL-2025-191848

pyximport

PyPI package · versions 0.0.1

Reported Jun 7, 2025 · Updated Dec 12, 2025

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 (4495a2909bdab391f460c6671937fa60d164f745657520e43700b229f56faf0a)
While described as telemetry, importing the package attempts to send out some basic info as well as quite sensitive environmental variables.

---

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

Campaign: 2025-06-stubsout

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.

- exfiltration-env-variables

Indicators of compromise

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

Domains

URLs