CVE catalog
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 s
- Severity
- High · CVSS 8.4
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.20% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | pdm | sid | 2.29.3-1 | fixed |
| Debian | pdm | forky | 2.29.3-1 | fixed |
| Debian | pdm | trixie | 2.20.1+ds1-2 | vulnerable |
| Debian | pdm | bookworm | 2.2.1+ds1-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pdm | source | sid | 2.27.0-1 | not yet assigned | Not reported | Not reported |
| Debian | pdm | source | forky | 2.27.0-1 | not yet assigned | Not reported | Not reported |
| Debian | pdm | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | pdm | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
Notes
[trixie] pdm: Minor issue [bookworm] pdm: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-pdm]Affected
Source package: [pdm]
Details (2)
2.2.1+ds1-1· all · bookwormAffected
nvd · pdm · debian · bookworm; nvd · pdm · debian · 12
2.2.1+ds1-1· all · bookwormAffected
nvd · pdm · debian · bookworm; nvd · pdm · debian · 12
[Debian 13 (Trixie)]
- [python3-pdm]Affected
Source package: [pdm]
Details (2)
2.20.1+ds1-2· all · trixieAffected
nvd · pdm · debian · 13
2.20.1+ds1-2· all · trixieAffected
nvd · pdm · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11124-1.json]
- [https://github.com/pdm-project/pdm/releases/tag/2.27.0]
- [https://github.com/pdm-project/pdm/security/advisories/GHSA-78v8-vpjp-cjqh]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-47764]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-47764]
- [https://security-tracker.debian.org/tracker/CVE-2026-47764]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47764.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]