{"id":"CVE-2026-47764","aliases":["DEBIAN-CVE-2026-47764","EUVD-2026-52854","GHSA-78v8-vpjp-cjqh","PYSEC-2026-2861","UBUNTU-CVE-2026-47764","openSUSE-SU-2026:11124-1","openSUSE-SU-2026:21161-1"],"status":"published","title":"pdm: Path traversal in wheel installation via overridden write_to_fs","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.","severity":{"version":"4.0","score":8.4,"vector":"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00197,"percentile":0.09434,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2026-06-10T20:33:13Z","modified":"2026-10-28T02:30:49Z","fixes":[{"ecosystem":"PyPI","package":"pdm","fixed_in":["2.27.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:14","package":"pdm","fixed_in":["2.27.0-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"pdm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.22.4"},{"fixed":"2.27.0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"pdm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.1+ds1-1","2.2.1+ds1-2","2.20.0.post1+ds1-1","2.20.0.post1+ds1-2","2.20.1+ds1-1","2.20.1+ds1-2","2.23.1-1","2.23.1-2","2.23.1-3","2.23.1-4","2.26.2-1","2.26.6-1","2.27.0-1","2.28.0-1","2.28.1-1","2.29.0-1","2.29.2-1","2.29.3-1"]},{"source":"osv","ecosystem":"Debian:13","package":"pdm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.20.1+ds1-2","2.23.1-1","2.23.1-2","2.23.1-3","2.23.1-4","2.26.2-1","2.26.6-1","2.27.0-1","2.28.0-1","2.28.1-1","2.29.0-1","2.29.2-1","2.29.3-1"]},{"source":"osv","ecosystem":"Debian:14","package":"pdm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27.0-1"}]}],"versions":["2.20.1+ds1-2","2.23.1-1","2.23.1-2","2.23.1-3","2.23.1-4","2.26.2-1","2.26.6-1"]},{"source":"osv","ecosystem":"PyPI","package":"pdm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27.0"}]}],"versions":["0.0.0","0.0.1","0.0.3","0.0.4","0.0.5","0.0.6","0.1.0","0.1.1","0.1.2","0.10.0","0.10.1","0.10.2","0.11.0","0.12.0","0.12.1","0.12.2","0.12.3","0.2.0","0.2.1","0.2.2","0.2.3","0.2.4","0.2.5","0.2.6","0.3.0","0.3.1","0.3.2","0.4.0","0.4.1","0.4.2","0.5.0","0.6.0","0.6.1","0.6.2","0.6.3","0.6.4","0.6.5","0.7.0","0.7.1","0.8.0","0.8.1","0.8.2","0.8.3","0.8.4","0.8.5","0.8.6","0.8.7","0.9.0","0.9.1","0.9.2","1.0.0","1.0.0b0","1.0.0b2","1.1.0","1.10.0","1.10.1","1.10.2","1.10.3","1.11.0","1.11.1","1.11.2","1.11.3","1.12.0","1.12.1","1.12.2","1.12.3","1.12.4","1.12.5","1.12.6","1.12.7","1.12.8","1.13.0","1.13.0.post0","1.13.1","1.13.2","1.13.3","1.13.4","1.13.5","1.13.6","1.14.0","1.14.1","1.15.0","1.15.1","1.15.2","1.15.3","1.15.4","1.15.5","1.2.0","1.2.0.post1","1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.4.0","1.4.1","1.4.2","1.4.3","1.4.4","1.4.5","1.5.0","1.5.0b0","1.5.0b1","1.5.1","1.5.2","1.5.3","1.6.0","1.6.1","1.6.2","1.6.3","1.6.4","1.7.0","1.7.1","1.7.2","1.8.0","1.8.1","1.8.2","1.8.3","1.8.4","1.8.5","1.9.0","2.0.0","2.0.0a1","2.0.0b1","2.0.0b2","2.0.1","2.0.2","2.0.3","2.1.0","2.1.1","2.1.2","2.1.3","2.1.4","2.1.5","2.10.0","2.10.1","2.10.2","2.10.3","2.10.4","2.11.0","2.11.1","2.11.2","2.12.0","2.12.1","2.12.2","2.12.3","2.12.4","2.13.0","2.13.1","2.13.2","2.13.3","2.14.0","2.15.0","2.15.1","2.15.2","2.15.3","2.15.4","2.16.0","2.16.1","2.17.0","2.17.1","2.17.2","2.17.3","2.18.0","2.18.1","2.18.2","2.19.0","2.19.0a0","2.19.1","2.19.2","2.19.3","2.2.0","2.2.1","2.20.0","2.20.0.post1","2.20.1","2.21.0","2.22.0","2.22.1","2.22.2","2.22.3","2.22.4","2.23.0","2.23.1","2.24.0","2.24.1","2.24.2","2.25.0","2.25.1","2.25.2","2.25.3","2.25.4","2.25.5","2.25.6","2.25.7","2.25.8","2.25.9","2.26.0","2.26.1","2.26.2","2.26.3","2.26.4","2.26.5","2.26.6","2.26.7","2.26.8","2.26.9","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.4.0","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","2.4.9","2.5.0","2.5.0b0","2.5.1","2.5.2","2.5.3","2.5.4","2.5.5","2.5.6","2.6.0","2.6.1","2.7.0","2.7.1","2.7.2","2.7.3","2.7.4","2.8.0","2.8.0a0","2.8.0a1","2.8.0a2","2.8.1","2.8.2","2.9.0","2.9.1","2.9.2","2.9.3"]},{"source":"osv","ecosystem":"PyPI","package":"pdm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27.0"}]}],"versions":["0.0.0","0.0.1","0.0.3","0.0.4","0.0.5","0.0.6","0.1.0","0.1.1","0.1.2","0.10.0","0.10.1","0.10.2","0.11.0","0.12.0","0.12.1","0.12.2","0.12.3","0.2.0","0.2.1","0.2.2","0.2.3","0.2.4","0.2.5","0.2.6","0.3.0","0.3.1","0.3.2","0.4.0","0.4.1","0.4.2","0.5.0","0.6.0","0.6.1","0.6.2","0.6.3","0.6.4","0.6.5","0.7.0","0.7.1","0.8.0","0.8.1","0.8.2","0.8.3","0.8.4","0.8.5","0.8.6","0.8.7","0.9.0","0.9.1","0.9.2","1.0.0","1.0.0b0","1.0.0b2","1.1.0","1.10.0","1.10.1","1.10.2","1.10.3","1.11.0","1.11.1","1.11.2","1.11.3","1.12.0","1.12.1","1.12.2","1.12.3","1.12.4","1.12.5","1.12.6","1.12.7","1.12.8","1.13.0","1.13.0.post0","1.13.1","1.13.2","1.13.3","1.13.4","1.13.5","1.13.6","1.14.0","1.14.1","1.15.0","1.15.1","1.15.2","1.15.3","1.15.4","1.15.5","1.2.0","1.2.0.post1","1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.4.0","1.4.1","1.4.2","1.4.3","1.4.4","1.4.5","1.5.0","1.5.0b0","1.5.0b1","1.5.1","1.5.2","1.5.3","1.6.0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Path traversal in wheel installation via overridden write_to_fs","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.","status":"published","published":"2026-08-04T17:57:15.756Z","modified":"2026-08-05T13:47:02.05Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T13:36:40.478484Z"}],"euvd":[{"id":"EUVD-2026-52854","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.","status":"published","published":"2026-08-04T17:57:15Z","modified":"2026-08-05T13:47:02Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high"}],"updated_at":"2026-11-02T18:02:10.319044Z"}],"ghsa":[{"id":"GHSA-78v8-vpjp-cjqh","title":"PDM  wheel installation leads to Path Traversal via overridden write_to_fs","description":"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. Same class as Poetry CVE-2026-34591. Fix ready at: https://github.com/pdm-project/pdm/pull/3787.","status":"published","published":"2026-06-10T20:33:13Z","modified":"2026-06-10T20:33:14Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:40:24.856614Z"}],"nvd":[{"id":"CVE-2026-47764","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.","status":"published","published":"2026-08-04T19:16:51.093Z","modified":"2026-10-24T16:10:00.153Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:34.643497Z"}],"osv":[{"id":"CVE-2026-47764","title":"pdm: Path traversal in wheel installation via overridden write_to_fs","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.","status":"published","published":"2026-08-04T17:57:15.756Z","modified":"2026-10-28T02:30:49.116771214Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:45:06.231145Z"},{"id":"DEBIAN-CVE-2026-47764","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.","status":"published","published":"2026-08-04T19:16:51.093Z","modified":"2026-10-25T09:47:34.550904415Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high"}],"updated_at":"2026-11-02T15:45:56.444225Z"},{"id":"GHSA-78v8-vpjp-cjqh","title":"PDM  wheel installation leads to Path Traversal via overridden write_to_fs","description":"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. Same class as Poetry CVE-2026-34591. Fix ready at: https://github.com/pdm-project/pdm/pull/3787.","status":"published","published":"2026-06-10T20:33:13Z","modified":"2026-07-13T16:42:32.212488935Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:40.657155Z"},{"id":"PYSEC-2026-2861","title":"PDM  wheel installation leads to Path Traversal via overridden write_to_fs","description":"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. Same class as Poetry CVE-2026-34591. Fix ready at: https://github.com/pdm-project/pdm/pull/3787.","status":"published","published":"2026-07-13T15:46:16.093778Z","modified":"2026-07-13T16:32:55.750454188Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T15:52:56.429374Z"},{"id":"UBUNTU-CVE-2026-47764","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.","status":"published","published":"2026-08-04T19:16:00Z","modified":"2026-10-17T12:58:56.542905579Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high"}],"updated_at":"2026-11-02T16:56:33.391918Z"},{"id":"openSUSE-SU-2026:11124-1","title":"python311-pdm-2.28.0-1.1 on GA media","description":"These are all security issues fixed in the python311-pdm-2.28.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-06-25T00:00:00Z","modified":"2026-06-26T08:15:05.852141134Z","updated_at":"2026-11-02T16:58:38.95195Z"},{"id":"openSUSE-SU-2026:21161-1","title":"Security update for python-pdm","description":"This update for python-pdm fixes the following issues:\n\nChanges in python-pdm:\n\n- CVE-2026-47763: Do not follow symlinks when writing config files (bsc#1268384)\n- CVE-2026-47763: Do not write to paths outside the scheme dir (bsc#1268385)\n- CVE-2026-47781: Update plugin installation path to use project_plugins_dir (bsc#1268386)\n","status":"published","published":"2026-06-26T07:50:46Z","modified":"2026-06-30T18:24:46.573756651Z","updated_at":"2026-11-02T16:58:41.885092Z"}]}}