{"answers":{"affected":"1 open source package ship an affected version, including bubblestr.","exploited":"There is no known exploitation of MAL-2026-5930 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-2026-5930 is a malicious package in bubblestr, published on 16 Jun 2026."},"fix_prompt":"MAL-2026-5930 is a malicious package: bubblestr (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-2026-5930/ (Markdown: https://insights.sbomify.com/MAL-2026-5930/index.md)","id":"MAL-2026-5930","markdown":"https://insights.sbomify.com/MAL-2026-5930/index.md","name":"MAL-2026-5930","record":{"aliases":["GHSA-9p79-38q4-f6wc"],"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 `\"postinstall\": \"node index.js\"`, and index.js is a heavily obfuscated single-file script (RC4+base64 string-array with rotating shift and two decoder wrappers). After deobfuscation, the postinstall body performs an HTTP GET to a built URL, writes the response body to a file under `os.tmpdir()` using `fs.writeFileSync(..., {flag:'w+'})`, and immediately executes the dropped file via `child_process.exec(path, {windowsHide:true, cwd: process.cwd()})`. This fires automatically on `npm install` with no user interaction and lands attacker-controlled bytes on the installer's machine. Author and description fields are empty, the obfuscation has no legitimate justification for a 'utility' package, and the README contradicts the published name by instructing users to install/require `@array-util/subsearch` — a name-confusion lure designed to harvest installs while hiding under a different documented identity. The combination of install-time remote fetch-and-exec, obfuscation intent to evade scanners, and identity mismatch is a textbook supply-chain dropper.\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 bubblestr (npm)","id":"MAL-2026-5930","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":"bubblestr","purl":"pkg:npm/bubblestr","source":"MAL-2026-5930"}],"products":null,"published":"2026-06-16","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-2026-5930/"}