Description
If `shutil.unpack_archive()` is given a ZIP archive with an absolute Windows path containing a drive (`C:\\...`) then the archive will be extracted outside the target directory which is different than other operating systems. Only Windows is affected by this vulnerability.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Python Software Foundation | CPython | < 3.10.21; >= 3.11.0, < 3.11.16; >= 3.12.0, < 3.12.14; >= 3.13.0, < 3.13.14; >= 3.14.0a1, < 3.14.5rc1; >= 3.15.0a1, < 3.15.0b1 |
References
- https://github.com/python/cpython/commit/1071290169f85c09cf767c1099564a9426cdc7e8
- https://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8cPatch
- https://github.com/python/cpython/commit/7ef7dd0a74f47facd1fadcbc77f8fb03beb5eb4d
- https://github.com/python/cpython/commit/8e13025747e1ca72e86d1f35637123f9c306f0cbPatch
- https://github.com/python/cpython/commit/8ee6aff14054b37b53e47194a2fa313e98163c94Patch
- https://github.com/python/cpython/commit/a6650a2cdf0c49fb8ce0c982903aa2aa274beefe
- https://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840Patch
- https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fdPatch
- https://github.com/python/cpython/commit/ba0aca3bffce431fe2fbd53ca4cd6a717a2e2c19Patch
- https://github.com/python/cpython/commit/fc829e88753858c8ac669594bf0093f44948c0f4Patch
- https://github.com/python/cpython/issues/146581Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/python/cpython/pull/146591Issue Tracking, Patch
- https://mail.python.org/archives/list/security-announce@python.org/thread/X6FXE5C6KDKOVNX3EC3DWD5RUPFWOZA4/Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/04/28/9Mailing List, Third Party Advisory
Timeline
- Published
- Apr 27, 2026
- Last modified
- Oct 26, 2026
- NVD status
- Modified