{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-3087", "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22", "state": "PUBLISHED", "assignerShortName": "PSF", "dateReserved": "2026-02-23T23:14:46.433Z", "datePublished": "2026-04-27T20:46:43.201Z", "dateUpdated": "2026-08-13T00:28:13.615Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "modules": [ "shutil" ], "product": "CPython", "repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "versions": [ { "version": "0", "lessThan": "3.10.21", "status": "affected", "versionType": "python" }, { "version": "3.11.0", "lessThan": "3.11.16", "status": "affected", "versionType": "python" }, { "version": "3.12.0", "lessThan": "3.12.14", "status": "affected", "versionType": "python" }, { "version": "3.13.0", "lessThan": "3.13.14", "status": "affected", "versionType": "python" }, { "version": "3.14.0a1", "lessThan": "3.14.5rc1", "status": "affected", "versionType": "python" }, { "version": "3.15.0a1", "lessThan": "3.15.0b1", "status": "affected", "versionType": "python" } ] } ], "credits": [ { "lang": "en", "type": "remediation developer", "value": "Serhiy Storchaka (https://github.com/serhiy-storchaka)" }, { "lang": "en", "type": "coordinator", "value": "Seth Larson (https://github.com/sethmlarson)" }, { "lang": "en", "type": "reporter", "value": "GGAutomaton (https://github.com/GGAutomaton)" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "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." } ], "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." } ], "metrics": [ { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 6, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-22", "description": "CWE-22", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "28c92f92-d60d-412d-b760-e73465c3df22", "shortName": "PSF", "dateUpdated": "2026-08-13T00:28:13.615Z" }, "references": [ { "tags": [ "patch" ], "url": "https://github.com/python/cpython/pull/146591" }, { "tags": [ "issue-tracking" ], "url": "https://github.com/python/cpython/issues/146581" }, { "tags": [ "vendor-advisory" ], "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/X6FXE5C6KDKOVNX3EC3DWD5RUPFWOZA4/" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fd" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/fc829e88753858c8ac669594bf0093f44948c0f4" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8c" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/8e13025747e1ca72e86d1f35637123f9c306f0cb" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/8ee6aff14054b37b53e47194a2fa313e98163c94" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/ba0aca3bffce431fe2fbd53ca4cd6a717a2e2c19" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/a6650a2cdf0c49fb8ce0c982903aa2aa274beefe" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/7ef7dd0a74f47facd1fadcbc77f8fb03beb5eb4d" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/1071290169f85c09cf767c1099564a9426cdc7e8" } ], "source": { "discovery": "UNKNOWN" }, "title": "shutil.unpack_archive() doesn't check for Windows absolute paths in ZIPs", "x_generator": { "engine": "Vulnogram 0.6.0" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "http://www.openwall.com/lists/oss-security/2026/04/28/9" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-04-28T05:07:42.331Z" } }, { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-04-28T13:38:08.747185Z", "id": "CVE-2026-3087", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-28T14:35:55.942Z" } } ] } }