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jaclang

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

Why PkgRadar flagged 0.16.4

Severity	Signal	Evidence
high	Python Bun Js Exec	Python file references the Bun JavaScript runtime — cross-language execution · jaclang-0.16.4/jaclang/pytest_plugin.py

Scanned versions

Version	Verdict	Score	Scanned (UTC)
`0.16.4`	High risk	20	2026-06-16
`0.16.3`	High risk	20	2026-06-12
`0.16.2`	High risk	20	2026-06-11
`0.16.1`	Low risk	0	2026-06-09
`0.16.0`	Low risk	0	2026-06-03
`0.15.6`	Low risk	0	2026-06-02
`0.15.5`	Low risk	0	2026-05-28
`0.15.4`	Review	11	2026-05-27

Campaign attribution

Part of the Shai-Hulud (PyPI) campaign.

Block this in CI

PkgRadar gates jaclang (and every other dependency) before it merges. One line in your pipeline:

pkgradar gate --ecosystem pypi jaclang==0.16.4