CVE-2026-0865

{"id": "CVE-2026-0865", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-0865", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-21T15:40:22.223517Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "cna@python.org", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.9, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "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"}}]}, "affected": [{"source": "cna@python.org", "affectedData": [{"vendor": "Python Software Foundation", "product": "CPython", "versions": [{"status": "affected", "version": "0", "lessThan": "3.10.20", "versionType": "python"}, {"status": "affected", "version": "3.11.0", "lessThan": "3.11.15", "versionType": "python"}, {"status": "affected", "version": "3.12.0", "lessThan": "3.12.13", "versionType": "python"}, {"status": "affected", "version": "3.13.0", "lessThan": "3.13.12", "versionType": "python"}, {"status": "affected", "version": "3.14.0", "lessThan": "3.14.3", "versionType": "python"}, {"status": "affected", "version": "3.15.0a1", "lessThan": "3.15.0a6", "versionType": "python"}], "defaultStatus": "unaffected"}]}], "published": "2026-01-20T22:15:52.800", "references": [{"url": "https://github.com/python/cpython/commit/22e4d55285cee52bc4dbe061324e5f30bd4dee58", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/23e3c0ae867cca0130e441e776c9955b9027c510", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/286e3ac39984fe85a17f4ab39c64d382137aae5f", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/2f840249550e082dc351743f474ba56da10478d2", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/4802b96a2cde58570c24c13ef3289490980961c5", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/66da7bf6fe7b81e3ecc9c0a25bd47d4616c8d1a6", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/83ecd18779f286d872f68bfce175651e407d9fff", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/8bb044d29310bb05d15086cdaa8bf64867d61a97", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/bfba660085767f8c2d582134e9d511a85eda04cf", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/c592227ffb48679af9845a45dbb0875d975bb219", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/e4846a93ac07a8ae9aa18203af0dd13d6e7a6995", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/f7fceed79ca1bceae8dbe5ba5bc8928564da7211", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/issues/143916", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/pull/143917", "source": "cna@python.org"}, {"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/BJ6QPHNSHJTS3A7CFV6IBMCAP2DWRVNT/", "source": "cna@python.org"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "cna@python.org", "description": [{"lang": "en", "value": "CWE-74"}]}], "descriptions": [{"lang": "en", "value": "User-controlled header names and values containing newlines can allow injecting HTTP headers."}, {"lang": "es", "value": "Nombres y valores de encabezado controlados por el usuario que contienen saltos de l\u00ednea pueden permitir la inyecci\u00f3n de encabezados HTTP."}], "lastModified": "2026-06-17T10:11:31.550", "sourceIdentifier": "cna@python.org"}