CVEvulnerability

CVE-2026-42301

7.8 HIGH Published 2026-05-09 Modified 2026-07-24 Official page ↗
Status
Deferred
Published
2026-05-09
Last modified
2026-07-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-20, CWE-94

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.

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-94 Improper Control of Generation of Code weakness

References