CVE-2026-3087
HIGH severity · CVSS 7.5 · Path traversal
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8c ↗
Additional information
- NVD record
- https://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8cPatch
- https://github.com/python/cpython/commit/8e13025747e1ca72e86d1f35637123f9c306f0cbPatch
- https://github.com/python/cpython/commit/8ee6aff14054b37b53e47194a2fa313e98163c94Patch
- 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/146581Patch