{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-3087","sourceIdentifier":"cna@python.org","published":"2026-04-27T21:16:42.480","lastModified":"2026-10-26T21:10:00.170","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Si a shutil.unpack_archive() se le proporciona un archivo ZIP con una ruta absoluta de Windows que contiene una unidad (C:\\\\...), entonces el archivo se extraerá fuera del directorio de destino, lo cual es diferente a otros sistemas operativos. Solo Windows se ve afectado por esta vulnerabilidad."}],"affected":[{"source":"cna@python.org","affectedData":[{"vendor":"Python Software Foundation","product":"CPython","defaultStatus":"unaffected","modules":["shutil"],"repo":"https://github.com/python/cpython","versions":[{"version":"0","lessThan":"3.10.21","versionType":"python","status":"affected"},{"version":"3.11.0","lessThan":"3.11.16","versionType":"python","status":"affected"},{"version":"3.12.0","lessThan":"3.12.14","versionType":"python","status":"affected"},{"version":"3.13.0","lessThan":"3.13.14","versionType":"python","status":"affected"},{"version":"3.14.0a1","lessThan":"3.14.5rc1","versionType":"python","status":"affected"},{"version":"3.15.0a1","lessThan":"3.15.0b1","versionType":"python","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"cna@python.org","type":"Secondary","cvssData":{"version":"4.0","vectorString":"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","baseScore":6.0,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-28T13:38:08.747185Z","id":"CVE-2026-3087","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"cna@python.org","type":"Secondary","description":[{"lang":"en","value":"CWE-22"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:*:*:*:*:*:*:*:*","versionEndIncluding":"3.14.4","matchCriteriaId":"8DA90507-80E6-4412-BBC7-F4D17DF6BCD7"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha1:*:*:*:*:*:*","matchCriteriaId":"A3327507-0B1D-4F28-A983-D07A2C8A7696"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha2:*:*:*:*:*:*","matchCriteriaId":"C8AF17F1-A27F-4C98-BA5A-B4319710E8D1"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha3:*:*:*:*:*:*","matchCriteriaId":"24CF56B0-2F4E-42A2-B655-F493AA0A4815"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha4:*:*:*:*:*:*","matchCriteriaId":"7184ABBA-B100-489E-B5C1-1C9EEC0546CA"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha5:*:*:*:*:*:*","matchCriteriaId":"B6D4181B-3E1B-499B-AAB1-50868A6A6AD3"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha6:*:*:*:*:*:*","matchCriteriaId":"A52F6DD2-717D-4E8C-8DB7-00890BC1ABAE"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha7:*:*:*:*:*:*","matchCriteriaId":"8C46C55C-801E-4F86-B669-8E6A12B4AB6F"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha8:*:*:*:*:*:*","matchCriteriaId":"5A8DF8E5-61F9-4899-BF40-41A17E223441"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*","matchCriteriaId":"A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}],"references":[{"url":"https://github.com/python/cpython/commit/1071290169f85c09cf767c1099564a9426cdc7e8","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8c","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/7ef7dd0a74f47facd1fadcbc77f8fb03beb5eb4d","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/8e13025747e1ca72e86d1f35637123f9c306f0cb","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/8ee6aff14054b37b53e47194a2fa313e98163c94","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/a6650a2cdf0c49fb8ce0c982903aa2aa274beefe","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fd","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/ba0aca3bffce431fe2fbd53ca4cd6a717a2e2c19","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/fc829e88753858c8ac669594bf0093f44948c0f4","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/issues/146581","source":"cna@python.org","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://github.com/python/cpython/pull/146591","source":"cna@python.org","tags":["Issue Tracking","Patch"]},{"url":"https://mail.python.org/archives/list/security-announce@python.org/thread/X6FXE5C6KDKOVNX3EC3DWD5RUPFWOZA4/","source":"cna@python.org","tags":["Mailing List","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/04/28/9","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]}]}}