Security Advisory

CVE-2026-42301

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-09 03:59:34

Last updated 2026-05-11 17:34:43

Assigner GitHub_M

CVSS score 7.8

State PUBLISHED

Description

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.

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