{"answers":{"affected":"1 open source package ship an affected version, including menu-filter-widget-web.","exploited":"There is no known exploitation of MAL-2026-5486 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-2026-5486 is a malicious package in menu-filter-widget-web, published on 9 Jun 2026."},"fix_prompt":"MAL-2026-5486 is a malicious package: menu-filter-widget-web (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-2026-5486/ (Markdown: https://insights.sbomify.com/MAL-2026-5486/index.md)","id":"MAL-2026-5486","markdown":"https://insights.sbomify.com/MAL-2026-5486/index.md","name":"MAL-2026-5486","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.json declares a postinstall lifecycle hook that runs callback.js on every npm install. callback.js reads os.hostname() and sends it to a hardcoded oastify.com (Burp Collaborator) URL via HTTPS GET, with a fallback DNS lookup that embeds the hostname as a subdomain label. Both channels carry a unique token plus the installer's hostname, registering the install with a remote attacker-controlled collaborator on every install. The package self-describes as a 'PoC' but is published to the public registry, so any installer leaks host identity automatically without consent.","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 menu-filter-widget-web (npm)","id":"MAL-2026-5486","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":"menu-filter-widget-web","purl":"pkg:npm/menu-filter-widget-web","source":"MAL-2026-5486"}],"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-2026-5486/"}