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CVE-2026-42301

CVE-2026-42301 · Improper Input Validation leading to Improper Control of Generation of Code ('Code Injection') in pyp2spec

This page contains facts from public vulnerability sources. Check the original advisory before updating.

pyp2spec generates working Fedora RPM spec file for Python projects. Prior to version 0.14.1, pyp2spec was writing PyPI package metadata (e.g. the summary field) into the generated spec file without escaping RPM macro directives. When a packager then runs rpmbuild, those directives get evaluated, so a malicious package can execute arbitrary commands on the build machine. This issue has been patched in version 0.14.1.

CVSS 7.8 · High · EPSS 0.2% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • pyp2spec

    Versions
    • < 0.14.1: Affected

    No fix published

  • pyp2spec PyPI

    Versions
    • 0.1.0
    • 0.10.0
    • 0.11.0
    • 0.11.1
    • 0.12.0
    • 0.12.1
    • 0.12.2
    • 0.13.0
    • 0.2.0
    • 0.3.0
    • 0.3.1
    • 0.3.2
    • 0.3.3
    • 0.4.0
    • 0.5.0
    • 0.5.0a1
    • 0.6.0
    • 0.6.1
    • 0.7.0
    • 0.8.0
    • 0.9.0
    Affected ranges
    • ECOSYSTEM: < 0.14.1

    Update to 0.14.1

Original sources

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