MAL-2025-191654

    Dashboard / Malicious Package / MAL-2025-191654

    MAL-2025-191654

    Published: 31 Oct 2025Last Modified: 19 Mar 2026

    Summary: Malicious code in pygments-richstyle (PyPI)

    Details: Source: kam193 (a965f61b1e51e6c96a8987633eaf2f23001320e4c6b884c33603230c66798e74) Packages silently decrypt content hidden in a dependency and load them as Python extension modules. In the first wave, those are copies of legitimate aiohttp and aiohappyeyeballs packages. In the second wave, malicious packages created good-looking forks of legitimate rich and pigments packages. Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2025-10-asynhttp Reasons (based on the campaign): - typosquatting - exfiltration-generic - obfuscation - clones-real-package - native-extension

    References: https://www.cert.at/en/blog/2025/10/how-typosquatting-tricked-me-a-bit, https://bad-packages.kam193.eu/pypi/package/pygments-richstyle, https://www.cert.at/en/blog/2025/10/how-typosquatting-tricked-me-a-bit

    Affected packages

    Package

    Name: pygments-richstyle

    Purl: pkg:pypi/pygments-richstyle

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0