Summary
nemo-toolkit v2.7.2 was classified as CRITICAL RISK with a risk score of 4925. Sigil detected 321 findings across 1978 files, covering phases including code patterns, network exfiltration, credential access, obfuscation, install hooks. Review the findings below before installing this package.
Package description: NeMo - a toolkit for Conversational AI
v2.7.2
25 March 2026, 19:51 UTC
by Sigil Bot
Risk Score
4925
Findings
321
Files Scanned
1978
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
nemo_toolkit-2.7.2/nemo/collections/diffusion/models/flux/model.py:495
def setup(self, stage: str):
super().setup(stage)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
nemo_toolkit-2.7.2/nemo/collections/multimodal/speech_cv/models/visual_ctc_models.py:121
# Adapter modules setup (from ASRAdapterModelMixin)
self.setup_adapters()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
nemo_toolkit-2.7.2/nemo/collections/multimodal/speech_llm/models/modular_t5_models.py:785
def setup(self, stage=None):
self.init_consumed_samples = 0Why 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
nemo_toolkit-2.7.2/nemo/export/multimodal/run.py:487
ptuning_args = self.ptuning_setup(visual_features, input_ids, input_lengths)
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-setup-py-cmdclass
CRITICALsetup.py overrides cmdclass — may execute code during install
nemo_toolkit-2.7.2/setup.py:292
# Custom commands.
cmdclass={'style': StyleCommand},
entry_points={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-pip-setup-exec
CRITICALsetup.py executes code at install time
nemo_toolkit-2.7.2/tests/collections/asr/test_asr_rnnt_encdec_model.py:41
@pytest.fixture()
def max_symbols_setup():
from nemo.collections.asr.modules.rnnt_abstract import AbstractRNNTDecoder, AbstractRNNTJointWhy 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
nemo_toolkit-2.7.2/tests/collections/multimodal/test_speechllm_models.py:192
model.on_train_start()
model.setup()
model.train()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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