MAL-2026-11810

Dashboard / Malicious Package / MAL-2026-11810

MAL-2026-11810

Summary: Malicious code in @qlik/tsconfig (npm)

Details: npm/@qlik/tsconfig 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. Source: amazon-inspector (8c290e0f246cdf6b8d6583117ee5c18a12029d920cdb5d7d58c5c4e47a2ac04e) The package presents itself as a static collection of TSConfig JSON files, but its package.json declares `"preinstall": "node setup.mjs"`. setup.mjs checks PATH for `bun`, and if absent downloads a Bun binary from https://github.com/oven-sh/bun/releases/download/bun-v<ver>/<archive>.zip, extracts it to a temp directory, chmods it executable, and then execFileSyncs the sibling file `math_init.js` under that freshly-installed Bun runtime. `math_init.js` is a ~727KB single-line, heavily obfuscated bundle carrying the `// @bun @bun-cjs` marker, a rotating string-array decoder (WV8StW shifting entries of MmgoCP), a large opaque constant table (n7gIxM), and hex-mangled identifiers. Nothing else in the package references math_init.js; it exists solely to be executed by the dropped Bun runtime at install time. Neither setup.mjs nor math_init.js is listed in package.json's declared `files` array (which enumerates only node.json, react.json, recommended.json, strictest.json, vue.json), so the executable payload ships in the tarball outside the author-declared manifest — consistent with a compromised publisher token or malicious release under the @qlik scope. Installing this package runs attacker-controlled obfuscated code on the installer's machine via a non-Node runtime chosen to evade Node-based scanners. Source: ghsa-malware (f865420914a6381eda84822faadf1fc29f11d270895a006f933b85a1756b13b0) 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.

References: https://socket.dev/blog/popular-npm-packages-in-the-keyv-and-cacheable-namespaces-compromised-in-active-supply-chain, https://www.aikido.dev/blog/keyv-and-friends-compromised-in-npm-supply-chain-attack, https://safedep.io/keyv-npm-supply-chain-compromise/, https://www.npmjs.com/package/@qlik/tsconfig, https://github.com/advisories/GHSA-49vc-6v6x-9fgh, https://www.npmjs.com/package/@qlik/tsconfig/v/1.0.3