{"id":"MAL-2026-905","summary":"Malicious code in marshmellows (PyPI)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (92a41b4a9b9f5733eae9cfa5ca9c6802d52d803a1835820ee5098f58419fc18e)\nPackage is a typosquatting or dependency confusion attempt with a low-harm local-only action, like leaving a flag file.\n\n\n---\n\nCategory: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.\n\n\nCampaign: GENERIC-local-typosquatting\n\n\nReasons (based on the campaign):\n\n\n - dependency-confusion\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n\n\n - typosquatting\n\n## Source: ossf-package-analysis (9db78f8d3a189592589ea859605c544c51d53a09054e4e109a0cc7824339b46d)\nThe OpenSSF Package Analysis project identified 'marshmellows' @ 1.0.0 (pypi) as malicious.\n\nIt is considered malicious because:\n\n- The package executes one or more commands associated with malicious behavior.\n","modified":"2026-02-19T22:58:20.803864Z","published":"2026-02-15T09:25:56Z","database_specific":{"malicious-packages-origins":[{"import_time":"2026-02-15T09:45:10.969155372Z","modified_time":"2026-02-15T09:29:38.287837Z","sha256":"92a41b4a9b9f5733eae9cfa5ca9c6802d52d803a1835820ee5098f58419fc18e","source":"kam193","versions":["1.0.0"],"id":"pypi/GENERIC-local-typosquatting/marshmellows"},{"versions":["1.0.0"],"import_time":"2026-02-19T22:45:35.082872924Z","modified_time":"2026-02-15T09:25:56Z","sha256":"9db78f8d3a189592589ea859605c544c51d53a09054e4e109a0cc7824339b46d","source":"ossf-package-analysis"}]},"references":[{"type":"WEB","url":"https://bad-packages.kam193.eu/pypi/package/marshmellows"}],"affected":[{"package":{"name":"marshmellows","ecosystem":"PyPI","purl":"pkg:pypi/marshmellows"},"versions":["1.0.0"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/marshmellows/MAL-2026-905.json"}}],"schema_version":"1.7.3","credits":[{"name":"Kamil Mańkowski (kam193)","contact":["https://github.com/kam193","https://bad-packages.kam193.eu/"],"type":"REPORTER"},{"name":"OpenSSF: Package Analysis","contact":["https://github.com/ossf/package-analysis","https://openssf.slack.com/channels/package_analysis"],"type":"FINDER"}]}