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chai-utils-test

Js Decode Then Exec: base64 / atob / fromCharCode decode adjacent to eval / new Function — canonical obfuscated-loader pattern.

Early detection

PkgRadar flagged this 10.0 days before public disclosure

Detected 2026-06-03 · disclosed as MAL-2026-5748 on 2026-06-13

Why PkgRadar flagged 4.5.5

SeveritySignalEvidence
highJs Decode Then Execbase64 / atob / fromCharCode decode adjacent to eval / new Function — canonical obfuscated-loader pattern. · package/lib/chai/utils/assertion.js

Scanned versions

VersionVerdictScoreScanned (UTC)
4.5.7Low risk02026-06-08
4.5.5Review452026-06-04
4.5.4Review452026-06-04
4.5.3Review452026-06-04
4.5.2Review452026-06-04
4.5.0Review452026-06-03
4.5.1Review452026-06-03

Block this in CI

PkgRadar gates chai-utils-test (and every other dependency) before it merges. One line in your pipeline:

pkgradar gate --ecosystem npm [email protected]