{"answers":{"affected":"1 open source package ship an affected version, including biunder.","exploited":"There is no known exploitation of MAL-2026-16634 in the wild and no public exploit code.","exposure":"","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-16634 is a malicious package in biunder, published on 22 Sep 2026."},"fix_prompt":"MAL-2026-16634 is a malicious package: biunder (RubyGems). 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-2026-16634/ (Markdown: https://insights.sbomify.com/MAL-2026-16634/index.md)","id":"MAL-2026-16634","markdown":"https://insights.sbomify.com/MAL-2026-16634/index.md","name":"MAL-2026-16634","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"","ecosystems":["RubyGems"],"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 biunder (RubyGems)","id":"MAL-2026-16634","indexable":false,"kev":null,"kind":"malicious","links":{"ecosystem":"RubyGems","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"nickname":null,"packages":[{"ecosystem":"RubyGems","fixed":[],"introduced":[],"last_affected":[],"package":"biunder","purl":"pkg:gem/biunder","source":"MAL-2026-16634"}],"products":null,"published":"2026-09-22","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-2026-16634/"}