MAL-2026-905

    Dashboard / Malicious Package / MAL-2026-905

    MAL-2026-905

    Published: 15 Feb 2026Last Modified: 19 Feb 2026

    Summary: Malicious code in marshmellows (PyPI)

    Details: Source: kam193 (92a41b4a9b9f5733eae9cfa5ca9c6802d52d803a1835820ee5098f58419fc18e) Package is a typosquatting or dependency confusion attempt with a low-harm local-only action, like leaving a flag file. Category: 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. Campaign: GENERIC-local-typosquatting Reasons (based on the campaign): - dependency-confusion - The package overrides the install command in setup.py to execute malicious code during installation. - typosquatting Source: ossf-package-analysis (9db78f8d3a189592589ea859605c544c51d53a09054e4e109a0cc7824339b46d) The OpenSSF Package Analysis project identified 'marshmellows' @ 1.0.0 (pypi) as malicious. It is considered malicious because: - The package executes one or more commands associated with malicious behavior.

    References: https://bad-packages.kam193.eu/pypi/package/marshmellows

    Affected packages

    Package

    Name: marshmellows

    Purl: pkg:pypi/marshmellows

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0
    MAL-2026-905 | CVE-DB