HIGH SeverityCVSS 3.17.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVE-2026-42301

Last updated May 09, 2026 · Published May 09, 2026

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.

Affected products

1 listed

befeleme:pyp2spec

Mappings

CWE

CWE-20CWE-94

CAPEC

None listed.

Research

Command injection: how it works and how to prevent itCommand injection happens when untrusted input reaches a shell or process spawn. Avoid the shell, pass…
Template InjectionExplains how untrusted input can be executed by template engines on server or client. Covers safe templating…

Guides

Supply Chain Security FundamentalsSBOMs, dependency verification, supplier assessment, and provenance for development teams.

Training

Input Validation and Schema EnforcementValidate early, validate strictly - schemas, allowlists, and type-safe boundaries.
Injection TodaySQL, NoSQL, ORM, and LLM injection - what's changed and what hasn't.
Dependency and Supply Chain ManagementSBOMs, lock files, and surviving the next big supply chain attack.

CVE-2026-42301

Description

Affected products

Mappings

Related