MAL-2026-3090

    Dashboard / Malicious Package / MAL-2026-3090

    MAL-2026-3090

    Published: 27 Apr 2026Last Modified: 27 Apr 2026

    Summary: Malicious code in bytedecs (PyPI)

    Details: Source: kam193 (33034832d7823023eca4d7640030b040b26d4d5274e222bf294b7cf0be28430c) Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose. 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-standard-pypi-install-pentest Reasons (based on the campaign): - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk. - The package overrides the install command in setup.py to execute malicious code during installation.

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

    Affected packages

    Package

    Name: bytedecs

    Purl: pkg:pypi/bytedecs

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    99.9.9
    MAL-2026-3090 | CVE-DB