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OpenAdvisories
Malicious MAL-2026-1438

pymnemonic

PyPI package · versions 1.1.2, 1.1.3, 1.2.5

Reported Mar 15, 2026 · Updated Mar 15, 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 (459bd254a36d9b8c78d96285e0c0aedb285b08f22900e022ea67988f3cb98e92)
Malicious clone of the legitimate python-utils package, disguised as a crypto-related helper. The malicious code modification exfiltrates sensitive env variables to a hardcoded location.

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

Campaign: 2026-03-pymnemonic

Reasons (based on the campaign):

- crypto-related

- exfiltration-crypto

- exfiltration-env-variables

- clones-real-package

- action-hidden-in-lib-usage

Indicators of compromise

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

Domains

URLs