{"answers":{"affected":"1 open source package ship an affected version, including helu.","exploited":"There is no known exploitation of MAL-2026-4357 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-2026-4357 is a malicious package in helu, published on 26 May 2026."},"fix_prompt":"MAL-2026-4357 is a malicious package: helu (PyPI). 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-2026-4357/ (Markdown: https://insights.sbomify.com/MAL-2026-4357/index.md)","id":"MAL-2026-4357","markdown":"https://insights.sbomify.com/MAL-2026-4357/index.md","name":"MAL-2026-4357","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"During import, the hidden code downloads and executes the second-stage code. After performing anti-analysis checks, it downloads a malicious executable and ensures its persistence.\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\nCampaign: 2026-05-helu\n\nReasons (based on the campaign):\n\n - obfuscation\n\n - Downloads and executes a remote malicious script.\n\n - The package contains code to detect if it is running in a sandbox environment.\n\n - Downloads and executes a remote executable.\n\n - malware\n\n - persistence\n\n - covering-tracks","ecosystems":["PyPI"],"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 helu (PyPI)","id":"MAL-2026-4357","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":[],"last_affected":[],"package":"helu","purl":"pkg:pypi/helu","source":"MAL-2026-4357"}],"products":null,"published":"2026-05-26","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-2026-4357/"}