Package evidence

nerftools==4.1.0

Python Bun Js Exec: Python file references the Bun JavaScript runtime — cross-language execution

Trust signals

Why this verdict

PkgRadar discounts a release’s score when public reputation argues against novel malware. The verdict above already reflects these — the panel just explains what was applied.

Versions published: 13
First published: Apr 2026
Publisher: Scot Hastings (Wayfarer Labs)

Recommended action

Block this update

Static evidence trips multiple high-signal indicators. Quarantine the release until the publisher validates the change or you can rule out the indicators below.

Inspect tarball Add to CI gate

Block this release in CIcurl · GitHub Actions

Fail the build when this package version is added or upgraded. Replace $PKGRADAR_TOKEN with a Pro / Team API key from your dashboard.

curl -fsS https://pkgradar.com/gate/npm \
  -H "Authorization: Bearer $PKGRADAR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"specs":["nerftools==4.1.0"],"fail_on":"high"}'

GitHub Actions step:

- name: PkgRadar gate
  run: |
    curl -fsS https://pkgradar.com/gate/npm \
      -H "Authorization: Bearer ${{ secrets.PKGRADAR_TOKEN }}" \
      -H "Content-Type: application/json" \
      -d '{"specs":["nerftools==4.1.0"],"fail_on":"high"}'

PublisherScot Hastings (Wayfarer Labs)

Artifact bytes422,528

Previous versionnone

Published2026-06-15T05:37:36

SHA-25653ab48b9847f9451eb14ac115e031da7a20aa57fc6c2ad92c5b136c65c99a62f

Why flagged

What the scanner saw

Python Bun Js Exec: Python file references the Bun JavaScript runtime — cross-language execution

Not observed: package install, lifecycle script execution, or sandbox execution. PkgRadar only inspects on-disk artifacts.

Availability ledger

available

high

2d agoLast checked

highRisk

49Score

4.1.0Version

Status history (1 event)

new → available2d ago · risk high · score 49 · status changed

Evidence

Static findings

4 static · 0 from release diff · showing high-signal first.

Severity	Kind	Path	Detail	Points
high	Python Bun Js Exec	nerftools-4.1.0/nerftools/builder.py	Python file references the Bun JavaScript runtime — cross-language execution	40

Show all 4 findings (low-signal and informational)

Severity	Kind	Path	Detail	Points
high	Python Bun Js Exec	nerftools-4.1.0/nerftools/builder.py	Python file references the Bun JavaScript runtime — cross-language execution	40
low	Credential file access	nerftools-4.1.0/nerftools/default_manifests/az-boards.yaml	matched ".azure\\"	3
low	Credential file access	nerftools-4.1.0/nerftools/default_manifests/az-pipelines.yaml	matched ".azure\\"	3
low	Credential file access	nerftools-4.1.0/nerftools/default_manifests/az-repos.yaml	matched ".azure\\"	3