puan4 (PyPI) · Malicious Code
Affects puan4Source GCVE Database
Malicious package : remove puan4 and rotate any secrets on hosts that installed it.
Data as of 27 Oct 2026, 01:05 UTC
Malicious package
Published to PyPI · OSV MAL-2026-3244
What to do
Remove puan4 from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| PyPIpuan4 | Affected
| Fixed in– |
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Description
The puan4 package on PyPI version 1.0.3 contains malicious code that initiates a connection to a command and control (C2) server upon import. It exfiltrates sensitive host information, including files and browser data, and can execute remote commands on the victim's machine. This behavior classifies it as malware with clear intent to steal information and potentially control the infected system.