{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-11972", "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22", "state": "PUBLISHED", "assignerShortName": "PSF", "dateReserved": "2026-06-11T11:35:05.520Z", "datePublished": "2026-06-23T22:02:45.434Z", "dateUpdated": "2026-06-23T22:02:45.434Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "modules": ["tarfile"], "product": "CPython", "repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "versions": [{"lessThan": "3.16.0", "status": "affected", "version": "0", "versionType": "python"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Ryan Hileman (https://github.com/lunixbochs)"}, {"lang": "en", "type": "coordinator", "value": "Petr Viktorin (https://github.com/encukou)"}, {"lang": "en", "type": "remediation reviewer", "value": "Stan Ulbrych (https://github.com/StanFromIreland)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"type": "text/html", "value": "When using the \"tarfile\" module with a file opened in \"streaming mode\" (mode=\"r|\") the tarfile module did not properly handle EOF, meaning an archive could be parsed in an infinite loop."}], "value": "When using the \"tarfile\" module with a file opened in \"streaming mode\" (mode=\"r|\") the tarfile module did not properly handle EOF, meaning an archive could be parsed in an infinite loop."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 8.2, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "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:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-252", "description": "CWE-252", "lang": "en", "type": "CWE"}, {"cweId": "CWE-606", "description": "CWE-606", "lang": "en", "type": "CWE"}, {"cweId": "CWE-770", "description": "CWE-770", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "28c92f92-d60d-412d-b760-e73465c3df22", "shortName": "PSF", "dateUpdated": "2026-06-23T22:02:45.434Z"}, "references": [{"tags": ["issue-tracking"], "url": "https://github.com/python/cpython/issues/151981"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/pull/151982"}, {"tags": ["vendor-advisory"], "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/AXPSKKTSRKXTTJULW3XSIC74WZNAAPPB/"}], "source": {"discovery": "UNKNOWN"}, "title": "tarfile opened in streaming mode mishandles EOF"}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,3.16.0)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "CPython", "source": "cna", "vendor": "Python Software Foundation"}, "product": "cpython", "vendor": "python"}], "created": "2026-06-24T01:00:05.985744+00:00", "updated": "2026-06-24T02:45:05.435315+00:00", "vendors": ["python", "python$PRODUCT$cpython"]}