{"answers":{"affected":"1 open source package ship an affected version, including internallib_v550.","exploited":"There is no known exploitation of MAL-2026-16439 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-2026-16439 is a malicious package in internallib_v550, published on 23 Sep 2026."},"fix_prompt":"MAL-2026-16439 is a malicious package: internallib_v550 (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-2026-16439/ (Markdown: https://insights.sbomify.com/MAL-2026-16439/index.md)","id":"MAL-2026-16439","markdown":"https://insights.sbomify.com/MAL-2026-16439/index.md","name":"MAL-2026-16439","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package internallib_v550 is named to resemble an internal private library and is published to the public npm registry, matching the classic dependency-confusion squat pattern. Its package.json description is 'pwn'. The single exported function `command` invokes child_process.exec to spawn `/bin/bash -c id` and logs the string 'infected' on the consumer host. The payload does not run at install or import time; it fires when consumer code calls the exported function. The name-squat intent, self-labeling as 'pwn', and shell-out on the exported API together form a dependency-confusion attack payload rather than a legitimate library.","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 internallib_v550 (npm)","id":"MAL-2026-16439","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":[],"last_affected":[],"package":"internallib_v550","purl":"pkg:npm/internallib_v550","source":"MAL-2026-16439"}],"products":null,"published":"2026-09-23","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-2026-16439/"}