Summary
chemcalculations v0.1.1 was classified as CRITICAL RISK with a risk score of 535. Sigil detected 27 findings across 28 files, covering phases including install hooks, code patterns, obfuscation. Review the findings below before installing this package.
Package description: PyTorch neural network emulator for FastChem gas-phase chemical equilibrium in planetary and exoplanet atmospheres.
v0.1.1
30 March 2026, 05:19 UTC
by Sigil Bot
Risk Score
535
Findings
27
Files Scanned
28
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-pip-setup-exec
CRITICALsetup.py executes code at install time
chemcalculations-0.1.1/PKG-INFO:102
1. **Speed** — Large throughput gains vs FastChem on CPU/GPU (see benchmarks; numbers are hardware-dependent).
2. **Accuracy** — Strong log-space metrics on the held-out setup (Log R², Log MAE, MFAE; [Performance Metrics](#performance-metrics)).
3. **Coverage** — Train for the project’s physical range (e.g. ~750–3000 K, 10⁻¹⁰–10⁵ bar).Why was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
install-pip-setup-exec
CRITICALsetup.py executes code at install time
chemcalculations-0.1.1/README.md:64
1. **Speed** — Large throughput gains vs FastChem on CPU/GPU (see benchmarks; numbers are hardware-dependent).
2. **Accuracy** — Strong log-space metrics on the held-out setup (Log R², Log MAE, MFAE; [Performance Metrics](#performance-metrics)).
3. **Coverage** — Train for the project’s physical range (e.g. ~750–3000 K, 10⁻¹⁰–10⁵ bar).Why was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
install-pip-setup-exec
CRITICALsetup.py executes code at install time
chemcalculations-0.1.1/src/chemcalculations.egg-info/PKG-INFO:102
1. **Speed** — Large throughput gains vs FastChem on CPU/GPU (see benchmarks; numbers are hardware-dependent).
2. **Accuracy** — Strong log-space metrics on the held-out setup (Log R², Log MAE, MFAE; [Performance Metrics](#performance-metrics)).
3. **Coverage** — Train for the project’s physical range (e.g. ~750–3000 K, 10⁻¹⁰–10⁵ bar).Why was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
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