Vulnerabilities CVE-2026-3087

CVE-2026-3087

Medium

Open

TLP:CLEAR

shutil.unpack_archive() doesn't check for Windows absolute paths in ZIPs

NVD CVE.org

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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.

Details

CVSS Score: 6.0
EPSS Score ⓘ: 0.55%

43.3th percentile
CVSS Vector: 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
Confidence: 90%
Published: Apr 27, 2026
Last Modified: Aug 13, 2026

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