MAL-2026-11672

Dashboard / Malicious Package / MAL-2026-11672

MAL-2026-11672

Summary: Malicious code in @or-sdk/auth (npm)

Details: npm/@or-sdk/auth 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 (731eba824abc61bc4023de98e9883a90d60f58d46c8daaa63abcf9ffb3a84686) package.json declares a preinstall hook that runs setup.mjs. setup.mjs downloads the Bun runtime (bun-v1.3.13) from github.com/oven-sh/bun releases into a temp directory, marks it executable, and uses it to run a sibling file math_init.js. math_init.js is a 727 KB heavily obfuscated bundle (string-array rotator, char-code decode table, hex-mangled identifiers such as MmgoCP / etDiOOB / hc1jfK9, filename that does not describe any auth functionality). The setup.mjs + math_init.js pair sits at the tarball root, is not referenced or imported by any file under dist/, and is disjoint from the auth SDK code advertised by README, CHANGELOG, and dist/. The alternate-runtime dropper pattern (fetching a second language runtime at install time specifically to execute a bundled, obfuscated payload under it) evades scanners that only follow Node-resolved code and runs attacker-controlled code on the installer's host as a side effect of npm install. Source: ghsa-malware (ea93c0887f4f21d89d7204d5fcaa2659ca213aee136a2024df239f437411d29f) 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/@or-sdk/auth, https://github.com/advisories/GHSA-6242-v6q3-mq53, https://www.npmjs.com/package/@or-sdk/auth/v/0.38.3, https://www.npmjs.com/package/@or-sdk/auth/v/0.38.1, https://www.npmjs.com/package/@or-sdk/auth/v/0.38.2