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OpenAdvisories
Malicious MAL-2026-450

sympy-dev

PyPI package · versions 1.2.3, 1.2.4, 1.2.5, 1.2.6

Reported Jan 22, 2026 · Updated Jan 22, 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

Package downloads and executes code from remote servers, indicating malicious behavior. Multiple files and IPs involved. Package impersonates popular sympy package.