CVE-2026-3087If `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 tha…
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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.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
python python python:python | through 3.14.4; 3.15.0; 3.15.0; 3.15.0; 3.15.0; 3.15.0; 3.15.0; 3.15.0; and 1 more ranges | NVD |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.