Summary
InnoCaptcha v2.2.1 was classified as CRITICAL RISK with a risk score of 50. Sigil detected 1 finding across 116 files, covering phases including install hooks. Review the findings below before installing this package.
Package description: A professional, pluggable CAPTCHA library with image, math, and custom challenge types, token-based security, and multiple storage backends.
v2.2.1
1 May 2026, 01:51 UTC
by Sigil Bot
Risk Score
50
Findings
1
Files Scanned
116
Provenance
Findings by Phase
Phase Ordering
Phases are ordered by criticality, with the most dangerous at the top. Click any phase header to expand or collapse its findings. Critical phases are expanded by default.
install-setup-py-cmdclass
CRITICALsetup.py overrides cmdclass — may execute code during install
innocaptcha-2.2.1/setup.py:44
],
cmdclass={"install": InstallCommand},
classifiers=[Why was this flagged?
This package overrides Python's setup.py cmdclass, which allows arbitrary code to execute during pip install. This is the primary attack vector for malicious PyPI packages — attackers use it to steal credentials, install backdoors, or download additional payloads before the developer ever runs the code. Rated CRITICAL because it executes automatically with no user interaction required.
Badge
Markdown
[](https://sigilsec.ai/scans/3E3E3FEA-EE7D-4CC7-8D10-0BB91A83D94D)HTML
<a href="https://sigilsec.ai/scans/3E3E3FEA-EE7D-4CC7-8D10-0BB91A83D94D"><img src="https://sigilsec.ai/badge/pypi/InnoCaptcha" alt="Sigil Scan"></a>Run This Scan Yourself
Scan your own packages
Run Sigil locally to audit any package before it touches your codebase.
Early Access
Get cloud scanning, threat intel, and CI/CD integration.
Join 150+ developers on the waitlist.
Get threat intelligence and product updates
Security research, new threat signatures, and product updates. No spam.
Other pypi scans
Believe this result is incorrect? Request a review or see our Terms of Service and Methodology.