{"answers":{"affected":"1 open source package ship an affected version, including python-utils.","exploited":"There is no known exploitation of MAL-2026-4652 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-2026-4652 is a malicious package in python-utils, published on 20 May 2026."},"fix_prompt":"MAL-2026-4652 is a malicious package: python-utils (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-2026-4652/ (Markdown: https://insights.sbomify.com/MAL-2026-4652/index.md)","id":"MAL-2026-4652","markdown":"https://insights.sbomify.com/MAL-2026-4652/index.md","name":"MAL-2026-4652","record":{"aliases":["GHSA-3c8h-wfcm-wpw5"],"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 \"preinstall\": \"./dist/typecheck.js\". The referenced file is not JavaScript — it is a 5,224,556-byte Linux x86 ELF executable (containing `__libc_start_main`, `/lib64`, and `nux-x86-` interpreter strings) with the literal endpoint `207.90.194.2:443` baked into it. The native binary is concealed behind forged TypeScript build metadata: a sibling `dist/typecheck.d.ts` declares a `getParser(): Promise\u003cParser\u003e` API for tree-sitter Python, and `dist/typecheck.js.map` is a reused copy of `parser.js.map` (its `\"file\"` field is `\"parser.js\"`), making the dropper look like ordinary tsdown output to a casual reviewer. On `npm install` on any Linux x86 host, the ELF runs automatically as the installer's user, calling out to the hardcoded IP:port. The package's stated purpose (a Python utility / tree-sitter parser wrapper) has no legitimate need to ship or execute a native binary at install time, and no pure-JS code path actually consumes `getParser`.\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 python-utils (npm)","id":"MAL-2026-4652","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":["0"],"last_affected":[],"package":"python-utils","purl":"pkg:npm/python-utils","source":"MAL-2026-4652"}],"products":null,"published":"2026-05-20","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-2026-4652/"}