GCVE-110-OSM-2026-11011

The package is published as 'chai-as-testkit' with a description referencing vulnerability management, but the tarball ships pino's README, docs/, index.d.ts, and lib/ tree (proto, levels, transport, worker, redaction) under an unrelated author (Robert King <hello@jsonspack.com>, bugs.url jsonspack.com) rather than the real pinojs publisher. The shipped index.js is a synthetic stub whose only effect is `const config = require('./lib/config')`, and lib/config.js is a 4,083,409-byte single-line obfuscator.io-style bundle: a rotated hex-escaped string array of ~23,953 entries with control-flow flattening and dead-code layers (webcrack inlines 40,105 decoded strings across the decoder layers before failing to serialize). This blob runs immediately when any consumer imports the package, executing attacker-controlled code inside the developer or CI Node.js process. The pino impersonation is the social-engineering wrapper around an on-import loader; the shape (name/description/author mismatch + hollow main entry that delegates to a multi-megabyte obfuscated module at require time) is a typosquat-delivered install/import-time RCE vehicle rather than a logging library. ENTRY index.js (main: index.js) OBFUSCATION - Obfuscation: augmented proxied array function replacements in lib/config.js - Hex Encoded Strings in lib/config.js: "'\x75\x6d\x6b\x75\x57\x34\x4a\x63\x4d\x6d\x6b\x33'" - Unicode Escape Obfuscation in lib/config.js: "\x75\x6d\x6b\x75\x57\x34\x4a\x63\x4d\x6d\x6b\x33" - Obfuscation: obfuscator.io in lib/config.js - Obfuscation patterns: hexHeavy in lib/config.js ADDITIONAL FINDINGS - Shell Command Execution in index.js: "require('child_process')" - Dynamic Code Execution in lib/redaction.js: "exec(str)" - Very New NPM Publisher Account PAYLOAD FILES lib/config.js (+ lib/redaction.js)