CVE-2025-13462

The "tarfile" module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.

CVSS

No CVSS.

References

Link	Resource
https://github.com/python/cpython/commit/42d754e34c06e57ad6b8e7f92f32af679912d8ab
https://github.com/python/cpython/commit/7ad3093d76a748af55bdb1d2e8aad3638163b017
https://github.com/python/cpython/commit/ae99fe3a33b43e303a05f012815cef60b611a9c7
https://github.com/python/cpython/issues/141707
https://github.com/python/cpython/pull/143934
https://mail.python.org/archives/list/security-announce@python.org/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/

Configurations

No configuration.

History

No history.

Information

Published : 2026-03-12 18:16

Updated : 2026-03-19 18:16

NVD link : CVE-2025-13462

Mitre link : CVE-2025-13462

CVE.ORG link : CVE-2025-13462

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-434

Unrestricted Upload of File with Dangerous Type

{"id": "CVE-2025-13462", "cveTags": [], "metrics": {"cvssMetricV40": [{"type": "Secondary", "source": "cna@python.org", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.0, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-03-12T18:16:21.397", "references": [{"url": "https://github.com/python/cpython/commit/42d754e34c06e57ad6b8e7f92f32af679912d8ab", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/7ad3093d76a748af55bdb1d2e8aad3638163b017", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/ae99fe3a33b43e303a05f012815cef60b611a9c7", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/issues/141707", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/pull/143934", "source": "cna@python.org"}, {"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/", "source": "cna@python.org"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-434"}]}], "descriptions": [{"lang": "en", "value": "The \"tarfile\" module would still apply normalization of AREGTYPE (\\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations."}, {"lang": "es", "value": "El m\u00f3dulo 'tarfile' seguir\u00eda aplicando la normalizaci\u00f3n de bloques AREGTYPE (\\x00) a DIRTYPE, incluso al procesar un miembro de m\u00faltiples bloques como GNUTYPE_LONGNAME o GNUTYPE_LONGLINK. Esto podr\u00eda resultar en un archivo tar manipulado siendo malinterpretado por el m\u00f3dulo tarfile en comparaci\u00f3n con otras implementaciones."}], "lastModified": "2026-03-19T18:16:14.297", "sourceIdentifier": "cna@python.org"}