{"answers":{"affected":"1 open source package ship an affected version, including serpacksven2.","exploited":"There is no known exploitation of MAL-2026-17627 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-2026-17627 is a malicious package in serpacksven2, published on 5 Oct 2026."},"fix_prompt":"MAL-2026-17627 is a malicious package: serpacksven2 (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-2026-17627/ (Markdown: https://insights.sbomify.com/MAL-2026-17627/index.md)","id":"MAL-2026-17627","markdown":"https://insights.sbomify.com/MAL-2026-17627/index.md","name":"MAL-2026-17627","record":{"aliases":["GHSA-4pg5-wvv5-w7fg"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The tarball ships ten identical files with misleading extensions (1.png, client.doc, json.txt, server.doc, for.you.doc,.txt,.txt.1,.txt.2, and an extensionless 'client'), all sharing the same SHA-256 and all containing the same PowerShell script. The script hides its console window and moves it off-screen via SetWindowPos, concatenates roughly 150 base64 chunks, XOR-decodes them, and passes the resulting bytes to System.Reflection.Assembly.Load().Invoke — an in-memory.NET assembly loader characteristic of RAT/stealer stagers. The package has no index.js, no main entry, and no lifecycle scripts, so `npm install` and `require()` do not themselves run the loader; the package exists purely to deliver and disguise the staged PowerShell/.NET payload for later execution on the host.\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 serpacksven2 (npm)","id":"MAL-2026-17627","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":"serpacksven2","purl":"pkg:npm/serpacksven2","source":"MAL-2026-17627"}],"products":null,"published":"2026-10-05","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-2026-17627/"}