pyext6cc8cd (PyPI) · Malicious Code
Affects pyext6cc8cdSource GCVE Database
Malicious package : remove pyext6cc8cd and rotate any secrets on hosts that installed it.
Data as of 26 Jun 2026, 22:42 UTC
Malicious package
Published to PyPI · OSV MAL-2026-6488
What to do
Remove pyext6cc8cd 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 |
|---|---|---|
| PyPIpyext6cc8cd | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
The pyext6cc8cd package version 1.0.0 on PyPI contains malicious code in its setup.py that executes arbitrary commands during installation. Specifically, it decodes a hex string to run the macOS Calculator application via subprocess.Popen unconditionally before the package setup completes. This behavior demonstrates that the package runs untrusted code at install time, posing a risk of arbitrary command execution. The package metadata is placeholder and it contains no functional code, indicating it is a proof-of-concept or test artifact. The obfuscation technique used to hide the command is designed to evade detection by scanners. While the current payload is benign, it could be replaced with destructive or data-exfiltration commands.