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.
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-78v8-vpjp-cjqh | PDM wheel installation leads to Path Traversal via overridden write_to_fs |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 05 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 05 Aug 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Pdm-project
Pdm-project pdm |
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| Vendors & Products |
Pdm-project
Pdm-project pdm |
Tue, 04 Aug 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | pdm: Path traversal in wheel installation via overridden write_to_fs | |
| Weaknesses | CWE-22 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-05T13:47:02.050Z
Reserved: 2026-05-19T22:36:16.881Z
Link: CVE-2026-47764
Updated: 2026-08-05T13:46:57.187Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-08-05T10:19:11Z
Weaknesses
Github GHSA