{"answers":{"affected":"1 open source package ship an affected version, including @greenlake/auth.","exploited":"There is no known exploitation of MAL-2026-18316 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-18316 is a malicious package in @greenlake/auth, published on 23 Oct 2026."},"fix_prompt":"MAL-2026-18316 is a malicious package: @greenlake/auth (npm). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-18316/ (Markdown: https://insights.sbomify.com/MAL-2026-18316/index.md)","id":"MAL-2026-18316","markdown":"https://insights.sbomify.com/MAL-2026-18316/index.md","name":"MAL-2026-18316","record":{"aliases":["GHSA-h6v3-2957-9j3g"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"@greenlake/auth is a dependency-confusion package: it is described as a \"Compatibility shim\", uses inflated version numbers, and its README calls it an \"authorized dependency-confusion test\". Each listed version (3.0.0) has a postinstall script that runs `node beacon.cjs` on npm install, and index.js calls the same code when the package is imported; it POSTs the hostname, install path and current working directory over plain HTTP to `http://185.158.107.175:8787/_ah/dc`, and index.js exports a Proxy that returns no-op functions so builds importing the real package keep running. The npm account wiseke published 14 such packages under the @greenlake, @sxm-web, @drone-js-ext and @ppa-web-components scopes between 2026-10-23 21:23 and 2026-10-25 14:28 UTC; index.js is byte-identical to that of ph-common (MAL-2026-1809), which sends to the same endpoint.\n\nThe package declares `postinstall: node beacon.cjs` and additionally fires the same beacon from `index.js` on require(). The beacon POSTs a JSON payload containing `os.hostname()`, `__dirname` (install path), `process.cwd()`, and the Node version to the hardcoded plain-HTTP bare-IP endpoint `http://185.158.107.175:8787/_ah/dc`, which is unrelated to any `@greenlake` publisher infrastructure. The package otherwise ships no functional code: `index.js` self-describes as a 'Compatibility shim' and exports a Proxy whose `get` trap returns a no-op for every property access. The shape — a `@scope/\u003cname\u003e` no-op shim whose only behavior is identifying the installing host to an attacker-controlled IP on `npm install` — matches the dependency-confusion probe pattern, where a public package is published under an internal scope name to map which corporate installers resolve to the public registry.\n\nAny 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.","ecosystems":["npm"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in @greenlake/auth (npm)","id":"MAL-2026-18316","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":[],"package":"@greenlake/auth","purl":"pkg:npm/%40greenlake/auth","source":"MAL-2026-18316"}],"products":null,"published":"2026-10-23","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-18316/"}