CVEvulnerability
CVE-2026-3087
6.0 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-04-27
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 6.0 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/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
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-22
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.
Affected configurations
• python python (<= 3.14.4)
• python python 3.15.0
Related
Weakness · CWE (1)
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
References
- https://github.com/python/cpython/commit/1071290169f85c09cf767c1099564a9426cdc7e8 github.com
- https://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8c Patch
- https://github.com/python/cpython/commit/7ef7dd0a74f47facd1fadcbc77f8fb03beb5eb4d github.com
- https://github.com/python/cpython/commit/8e13025747e1ca72e86d1f35637123f9c306f0cb Patch
- https://github.com/python/cpython/commit/8ee6aff14054b37b53e47194a2fa313e98163c94 Patch
- https://github.com/python/cpython/commit/a6650a2cdf0c49fb8ce0c982903aa2aa274beefe github.com
- https://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840 Patch
- https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fd Patch
- https://github.com/python/cpython/commit/ba0aca3bffce431fe2fbd53ca4cd6a717a2e2c19 Patch
- https://github.com/python/cpython/commit/fc829e88753858c8ac669594bf0093f44948c0f4 Patch
- https://github.com/python/cpython/issues/146581 Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/python/cpython/pull/146591 Issue Tracking, Patch
- https://mail.python.org/archives/list/[email protected]/thread/X6FXE5C6KDKOVNX3EC3DWD5RUPFWOZA4/ Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/04/28/9 Mailing List, Third Party Advisory