CVE-2026-0864

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"NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/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": "PASSIVE", "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": [{"repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "product": "CPython", "versions": [{"status": "affected", "version": "0", "lessThan": "3.10.21", "versionType": "python"}, {"status": "affected", "version": "3.11.0", "lessThan": "3.11.16", "versionType": "python"}, {"status": "affected", "version": "3.12.0", "lessThan": "3.12.14", "versionType": "python"}, {"status": "affected", "version": "3.13.0", "lessThan": "3.13.15", "versionType": "python"}, {"status": "affected", "version": "3.14.0", "lessThan": "3.14.7", "versionType": "python"}, {"status": "affected", "version": "3.15.0a1", "lessThan": "3.15.0b4", "versionType": "python"}], "defaultStatus": "unaffected"}]}], "published": "2026-06-23T18:17:41.243", "references": [{"url": "https://github.com/python/cpython/commit/0adb386f6e68eb2e73d32e19f235d012df009528", "tags": ["Patch"], "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/12dcbd74d3563016a8cb8c47e4898889f34f74dd", "tags": ["Patch"], "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/274de100bbf4345bd0c23ef5b446722e9e636908", "tags": ["Patch"], "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/5858e42c539dac8394636a6e9b30472b8994851f", "tags": ["Patch"], "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/71f2e02a52d47417a6fd69f456346cd8aa7aca98", "tags": ["Patch"], "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/aaf850fd333cd89e9aada03d92aaa788a6cb1bb8", "tags": ["Patch"], "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/db4a157c790479710a1a840d7937c5c815a6f8b6", "tags": ["Patch"], "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/issues/143927", "tags": ["Issue Tracking", "Patch"], "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/pull/151559", "tags": ["Issue Tracking", "Patch"], "source": "cna@python.org"}, {"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/CV4NE6AFCRJL7XQOHX7J5TSDHUWVWGJS/", "tags": ["Mailing List", "Vendor Advisory"], "source": "cna@python.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-74"}]}], "descriptions": [{"lang": "en", "value": "When using the \"configparser\" module to write configuration files\ncontaining multi-line text values with carriage return characters (\\r) the\nresulting file could be injected with unexpected keys and values if the\nattacker controls the written value."}], "lastModified": "2026-08-18T17:52:03.230", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "35C0374F-6CC2-4546-8933-B382CD3A9225", "versionEndExcluding": "3.10.21"}, {"criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D409E2A6-22F1-47D5-A273-4772BF45925E", "versionEndExcluding": "3.11.16", "versionStartIncluding": "3.11.0"}, {"criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "15B3E361-E948-4A55-A163-E681B8E0EF16", "versionEndExcluding": "3.12.14", "versionStartIncluding": "3.12.0"}, {"criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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