{"answers":{"affected":"1 open source package ship an affected version, including eslint-rxjs.","exploited":"There is no known exploitation of MAL-2026-15812 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-2026-15812 is a malicious package in eslint-rxjs, published on 2 Sep 2026."},"fix_prompt":"MAL-2026-15812 is a malicious package: eslint-rxjs (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-2026-15812/ (Markdown: https://insights.sbomify.com/MAL-2026-15812/index.md)","id":"MAL-2026-15812","markdown":"https://insights.sbomify.com/MAL-2026-15812/index.md","name":"MAL-2026-15812","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"eslint-rxjs is a masquerade package whose npm metadata is internally inconsistent: the name references ESLint/RxJS, the description reads 'Integrate redis with cookies', and the author field impersonates well-known maintainers. The package ships no advertised functionality; index.cjs contains only a beacon helper. The package.json postinstall hook runs scripts/postinstall.cjs, which loads index.cjs and calls onInstall(), unconditionally issuing an HTTP GET to the hardcoded ngrok tunnel https://e493-95-216-46-122.ngrok-free.app/ping at install time. An ngrok-free.app subdomain is ephemeral, attacker-controlled infrastructure with no legitimate use for a published package; the request confirms code execution on the installer's machine and discloses the installer's source IP and install timing to that endpoint. This is the reconnaissance stage of a supply-chain dropper.\n\nThe OpenSSF Package Analysis project identified 'eslint-rxjs' @ 1.0.1 (npm) as malicious.\n\nIt is considered malicious because:\n\n- The package communicates with a domain associated with malicious activity.","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-rxjs (npm)","id":"MAL-2026-15812","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":"eslint-rxjs","purl":"pkg:npm/eslint-rxjs","source":"MAL-2026-15812"}],"products":null,"published":"2026-09-02","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-2026-15812/"}