{"id":"CVE-2026-3087","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-3087","generatedAt":"2026-10-28T04:44:44.576Z","title":"Only Windows is affected by this vulnerability.","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.","published":"2026-04-27T21:16:42.000Z","lastModified":"2026-10-26T21:10:00.000Z","status":"Modified","sourceIdentifier":"cna@python.org","cvss":{"version":"4.0","score":6,"severity":"MEDIUM","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-22"],"affected":["python/python"],"epss":{"score":0.00551,"percentile":0.45899,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/python/cpython/commit/1071290169f85c09cf767c1099564a9426cdc7e8","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8c","tags":["Patch"],"source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/7ef7dd0a74f47facd1fadcbc77f8fb03beb5eb4d","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/8e13025747e1ca72e86d1f35637123f9c306f0cb","tags":["Patch"],"source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/8ee6aff14054b37b53e47194a2fa313e98163c94","tags":["Patch"],"source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/a6650a2cdf0c49fb8ce0c982903aa2aa274beefe","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840","tags":["Patch"],"source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fd","tags":["Patch"],"source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/ba0aca3bffce431fe2fbd53ca4cd6a717a2e2c19","tags":["Patch"],"source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/fc829e88753858c8ac669594bf0093f44948c0f4","tags":["Patch"],"source":"cna@python.org"},{"url":"https://github.com/python/cpython/issues/146581","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"],"source":"cna@python.org"},{"url":"https://github.com/python/cpython/pull/146591","tags":["Issue Tracking","Patch"],"source":"cna@python.org"},{"url":"https://mail.python.org/archives/list/security-announce@python.org/thread/X6FXE5C6KDKOVNX3EC3DWD5RUPFWOZA4/","tags":["Mailing List","Vendor Advisory"],"source":"cna@python.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/04/28/9","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3087","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}