{"answers":{"affected":"1 open source package ship an affected version, including test89-auth.","exploited":"There is no known exploitation of MAL-2026-16288 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-2026-16288 is a malicious package in test89-auth, published on 18 Sep 2026."},"fix_prompt":"MAL-2026-16288 is a malicious package: test89-auth (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-2026-16288/ (Markdown: https://insights.sbomify.com/MAL-2026-16288/index.md)","id":"MAL-2026-16288","markdown":"https://insights.sbomify.com/MAL-2026-16288/index.md","name":"MAL-2026-16288","record":{"aliases":["GHSA-7868-hxr7-g8r6"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"test89-auth@1.0.1 runs `node index.js` from its `preinstall` lifecycle hook. On `npm install`, index.js collects host identity (`hostname`, `whoami`, `id`, `uname -a`, `pwd`) and recursively lists filesystem roots `/`, `/home`, `/opt`, `/var/www`, and `/tmp` to depth 2, base64-encodes the aggregated output, and exfiltrates it as chunked `nslookup` DNS queries to the hardcoded subdomain `dfwstre3dgnrhwm2bvkczgucc3iv6lua.oastify.com` (a Burp Collaborator interaction host controlled by whoever generated the subdomain). The package's own `package.json` additionally declares itself as a dependency (`\"test89-auth\": \"^1.0.1\"`), an anomalous self-referential shape consistent with red-team/PoC scaffolding. There is no legitimate functionality corresponding to the advertised `auth` purpose; the entire install-time behavior is host reconnaissance and filesystem enumeration exfiltrated off-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 test89-auth (npm)","id":"MAL-2026-16288","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":"test89-auth","purl":"pkg:npm/test89-auth","source":"MAL-2026-16288"}],"products":null,"published":"2026-09-18","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-2026-16288/"}