CVE-2026-4360

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An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function."}, {"lang": "es", "value": "En la funci\u00f3n Tarfile.extract(), el par\u00e1metro filter no se pasa correctamente al extraer hardlinks. Un sistema afectado que extrae contenido de archivos tar no confiables podr\u00eda terminar escribiendo archivos con un uid/gid inesperado a pesar de que el usuario pase filter=\u2019data\u2019 a la funci\u00f3n extract()."}], "id": "CVE-2026-4360", "lastModified": "2026-10-25T21:10:00.770", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.0, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:L/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@python.org", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4360", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-30T15:28:24.835246Z", "version": "2.0.3"}}]}, "published": "2026-06-30T15:16:57.193", "references": [{"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/0367912be336348b30572f8029cec4a282782d92"}, {"source": "cna@python.org", "tags": ["Patch"], "url": "https://github.com/python/cpython/commit/5e0ef3f1afe892e4f64eb83368db57ac4c40cba0"}, {"source": "cna@python.org", "tags": ["Patch"], "url": "https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301"}, {"source": "cna@python.org", "tags": ["Patch"], "url": "https://github.com/python/cpython/commit/7ccdbaba2c54250a70d7f25632152df7655a5e0a"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/cf23b9153181062150d061468b6d24af33fe214f"}, {"source": "cna@python.org", "tags": ["Patch"], "url": "https://github.com/python/cpython/commit/d2b2f5eacab4dd48446b63340613b05dcbbf0b44"}, {"source": "cna@python.org", "tags": ["Patch"], "url": "https://github.com/python/cpython/commit/eee3ddf0ca10283cc7fea724aae9cd8665f8d15e"}, {"source": "cna@python.org", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/python/cpython/issues/151987"}, {"source": "cna@python.org", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/python/cpython/pull/151988"}, {"source": "cna@python.org", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/TWZW2PC2AZOV6FENIHFSRC63OM7MBGSB/"}], "sourceIdentifier": "cna@python.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-281"}], "source": "cna@python.org", "type": "Secondary"}]}

{}

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