MAL-2026-11642

npm/@onereach/si-radio-group 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 MathSymbol.js / mathinit.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.

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Source: amazon-inspector (6326e5f858f0e5dd7bf78827047b0e903a7e9e8a6963bdb15b0c5169e491b1c0)

The package's preinstall script (node setup.mjs, declared in package.json) downloads the Bun runtime from GitHub releases (bun-v1.3.13) into a temporary directory, chmods it executable, and then invokes it against a sibling file math_init.js bundled in the package. math_init.js is a ~728KB single-line, heavily obfuscated file tagged // @bun @bun-cjs with hex-named identifiers and a rotating string-array decoder (WV8StW/n7gIxM) — Bun-only bytecode-style content that cannot be inspected by Node-based tooling. setup.mjs additionally fingerprints the host (runs ldd --version, reads /etc/os-release to detect musl/Alpine, checks process.platform and process.arch) so the correct Bun variant is fetched across Linux glibc, Linux musl, macOS, and Windows on x64 and arm64. The advertised package purpose is a Vue radio-group input component, which has no legitimate need to fetch an alternate JavaScript runtime and execute an opaque 728KB payload under it at install time. The alternate-runtime approach specifically evades Node-only static analysis of the executed code.

Source: ghsa-malware (7c591282f70a88931c56d72d9771d1fa790ebab5757a546f96c3eeb05b86017d)

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.