CVE-2026-47764

pdm is a Python package and dependency manager supporting the latest PEP standards. Versions prior to 2.27.0 are vulnerable to path traversal through write_to_fs. InstallDestination.write_to_fs() in src/pdm/installers/installers.py overrides the base class to add symlink/hardlink support but replaces the safe _path_with_destdir() (which validates via Path.resolve() + is_relative_to()) with a bare os.path.join() that performs no path validation. A malicious wheel with traversal entries can write arbitrary files. This issue has been fixed in version 2.27.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/pdm-project/pdm/releases/tag/2.27.0
https://github.com/pdm-project/pdm/security/advisories/GHSA-78v8-vpjp-cjqh

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-04 19:16

Updated : 2026-09-08 20:51

NVD link : CVE-2026-47764

Mitre link : CVE-2026-47764

CVE.ORG link : CVE-2026-47764

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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