Summary
xerv-crayon v5.2.8 was classified as CRITICAL RISK with a risk score of 645. Sigil detected 38 findings across 77 files, covering phases including obfuscation, install hooks, code patterns, provenance, network exfiltration. Review the findings below before installing this package.
Package description: Omni-Backend Tokenizer - CPU (AVX2/512), CUDA (NVIDIA), ROCm (AMD) with automatic hardware detection
v5.2.8
20 March 2026, 07:48 UTC
by Sigil Bot
Risk Score
645
Findings
38
Files Scanned
77
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
xerv_crayon-5.2.8/src/crayon/resources/CRAYON_Full_Codebase.txt:3549
log("Using CrayonBuildExt for HIP compilation")
cmdclass = {"build_ext": CrayonBuildExt}
elif BuildExtension and TORCH_CUDA_AVAILABLE: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.
install-setup-py-cmdclass
CRITICALsetup.py overrides cmdclass — may execute code during install
xerv_crayon-5.2.8/src/crayon/resources/CRAYON_Full_Codebase.txt:3553
log("Using PyTorch BuildExtension for CUDA compilation")
cmdclass = {"build_ext": BuildExtension.with_options(no_python_abi_suffix=True)}
else: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.
install-setup-py-cmdclass
CRITICALsetup.py overrides cmdclass — may execute code during install
xerv_crayon-5.2.8/src/crayon/resources/CRAYON_Full_Codebase.txt:3556
# Use default
cmdclass = {}
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.
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