{"answers":{"affected":"1 open source package ship an affected version, including routecraft.","exploited":"There is no known exploitation of MAL-2026-6229 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-2026-6229 is a malicious package in routecraft, published on 19 Jun 2026."},"fix_prompt":"MAL-2026-6229 is a malicious package: routecraft (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-2026-6229/ (Markdown: https://insights.sbomify.com/MAL-2026-6229/index.md)","id":"MAL-2026-6229","markdown":"https://insights.sbomify.com/MAL-2026-6229/index.md","name":"MAL-2026-6229","record":{"aliases":["GHSA-mw8m-x3ph-h3x7"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"routecraft@4.2.0 ships verbatim Express.js source (lib/routecraft.js, lib/application.js, lib/request.js, lib/response.js, lib/utils.js, lib/view.js — same layout, comments, and exports including createApplication, Router, and json/raw/text/urlencoded/static middleware) under a different package name and author with no Express attribution, presenting itself as an original 'lightweight HTTP routing framework'. package.json declares `\"preinstall\": \"node./lib/configure.js\"`. lib/configure.js performs no compilation despite logging '...Skipping native addon compilation' — the package ships no native sources (no binding.gyp, no.cc/.cpp/.rs files). Instead, lines 10-12 contain `if (os.platform() === 'win32' \u0026\u0026 v \u003e= 18) { require('procwire'); }`, conditionally loading the obscure `procwire` dependency (declared as `^1.3.0`) only on Windows with Node \u003e= 18. The false cover story, the platform gate, and the delegation of the executed code to an unpinned transitive dependency together form the standard pattern for shifting a malicious payload off the parent package so it appears clean while installers on Windows execute whatever procwire ships at install time.\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 routecraft (npm)","id":"MAL-2026-6229","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":"routecraft","purl":"pkg:npm/routecraft","source":"MAL-2026-6229"}],"products":null,"published":"2026-06-19","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-2026-6229/"}