{"answers":{"affected":"1 open source package ship an affected version, including ipy-rev-proxy.","exploited":"There is no known exploitation of MAL-2026-5475 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-2026-5475 is a malicious package in ipy-rev-proxy, published on 9 Jun 2026."},"fix_prompt":"MAL-2026-5475 is a malicious package: ipy-rev-proxy (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-2026-5475/ (Markdown: https://insights.sbomify.com/MAL-2026-5475/index.md)","id":"MAL-2026-5475","markdown":"https://insights.sbomify.com/MAL-2026-5475/index.md","name":"MAL-2026-5475","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On `npm install`, index.js runs as a preinstall hook and POSTs hostname, username, platform, architecture, cwd, CI flags, and npm user-agent to https://webhook.site/40b5f3e2-4072-4f2c-b259-0ecb531755d7. The same script then probes Google's internal SSO proxy at http://uberproxy.corp.google.com/procz and the GCE metadata endpoint http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/token (with the required `Metadata-Flavor: Google` header) and forwards any 200 response — including GCE service-account tokens — plus `hostname`, `id`, and `uname -a` output to the same webhook. The package presents itself with a generic Jupyter description and the placeholder author 'IPython Development Team' but ships no functional code matching that description; the name and metadata are consistent with a dependency-confusion lure aimed at Google internal builds.","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 ipy-rev-proxy (npm)","id":"MAL-2026-5475","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":"ipy-rev-proxy","purl":"pkg:npm/ipy-rev-proxy","source":"MAL-2026-5475"}],"products":null,"published":"2026-06-09","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-2026-5475/"}