@ornikar/jest-config-react-nativenpm

npm/@ornikar/jest-config-react-native is affected by the large-scale, self-propagating npm supply-chain worm of 2026-08-04 (the "Shai-Hulud: Here We Go Again" wave) — the same campaign that began with the compromise of the keyv and cacheable maintainer account. The listed version(s) were trojanized and republished by the worm after it reached an npm publish token belonging to a maintainer in this namespace; the payload enumerates every package a stolen token controls and republishes each with the same hook, so many packages under this scope were poisoned in the same short window. Every poisoned release adds a preinstall hook ("preinstall": "node setup.mjs") that runs on a bare npm install, before any project code. setup.mjs downloads a standalone Bun runtime and runs a byte-identical, heavily obfuscated ~728 KB second-stage credential stealer (shipped as Math_Symbol.js / math_init.js). It harvests GitHub, npm, AWS, GCP, Azure, HashiCorp Vault and Kubernetes credentials plus generic secrets and private keys (TruffleHog-style sweep), reads CI/CD secrets and identifies build runners, then republishes further packages the stolen token can reach. Rather than a fixed command-and-control host, it exfiltrates stolen findings to attacker-created GitHub repositories (descriptions reading "Shai-Hulud: Here We Go Again") and over DNS. Treat any environment that installed an affected version (with install scripts enabled) as compromised: rotate and revoke all reachable credentials (npm and GitHub tokens, cloud keys, Vault/Kubernetes secrets, and CI org/repo secrets). Part of the August 2026 npm worm that poisoned 400+ packages across many organizations.

The package declares a preinstall lifecycle hook (node setup.mjs) that runs automatically at npm install. setup.mjs is itself obfuscated (obfuscator.io-style hex-named identifiers such as _0x488df8, _0x52943e, and dispatch-object wrappers around execFileSync, writeFileSync, and HTTPS download primitives). It downloads a pinned Bun release from github.com/oven-sh/bun to a temp directory, extracts it, chmods it executable, and invokes it via execFileSync to run the sibling file math_init.js. math_init.js is a ~727KB single-line Bun-compiled bundle (// @bun @bun-cjs header) containing a rotated numeric/string opcode array and a dispatch shuffler (WV8StW). This payload is never loaded by the normal Node.js require path; it is only reachable through the freshly downloaded alternate runtime. A jest configuration package has no functional need for a second JavaScript runtime, an obfuscated preinstall script, or a 727KB opaque compiled bundle. Fetching Bun specifically to execute an obfuscated sibling artifact at install time deliberately evades Node-based static analysis and yields arbitrary code execution on the installing machine.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.