ByteOS Network

NVD Vulnerability Details :

CVE-2026-42301

Received

Source-security-advisories@github.com

Published At-09 May, 2026 | 04:16

Updated At-09 May, 2026 | 04:16

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Type: Secondary

Version: 3.1

Base score: 7.8

Base severity: HIGH

Vector:

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

Weaknesses

CWE ID	Type	Source
CWE-20	Primary	security-advisories@github.com
CWE-94	Primary	security-advisories@github.com

CWE ID: CWE-20

Type: Primary

Source: security-advisories@github.com

CWE ID: CWE-94

Type: Primary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/befeleme/pyp2spec/releases/tag/v0.14.1	security-advisories@github.com	N/A
https://github.com/befeleme/pyp2spec/security/advisories/GHSA-r35x-v8p8-xvhw	security-advisories@github.com	N/A

Hyperlink: https://github.com/befeleme/pyp2spec/releases/tag/v0.14.1

Source: security-advisories@github.com

Resource: N/A

Hyperlink: https://github.com/befeleme/pyp2spec/security/advisories/GHSA-r35x-v8p8-xvhw

Source: security-advisories@github.com

Resource: N/A

CISA Catalog

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CPE Matches

Weaknesses

Evaluator Description

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Evaluator Solution

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References

Change History