{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-2297", "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22", "state": "PUBLISHED", "assignerShortName": "PSF", "dateReserved": "2026-02-10T16:26:08.298Z", "datePublished": "2026-03-04T22:10:43.297Z", "dateUpdated": "2026-03-04T22:14:56.190Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "CPython", "repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "versions": [{"lessThan": "3.15.0", "status": "affected", "version": "0", "versionType": "python"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The import hook in CPython that handles legacy <code>*.pyc</code> files (<code>SourcelessFileLoader</code>) is incorrectly handled in <code>FileLoader</code> (a base class) and so does not use <code>io.open_code()</code> to read the <code>.pyc</code> files. sys.audit handlers for this audit event therefore do not fire."}], "value": "The import hook in CPython that handles legacy *.pyc files (SourcelessFileLoader) is incorrectly handled in FileLoader (a base class) and so does not use io.open_code() to read the .pyc files. sys.audit handlers for this audit event therefore do not fire."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "baseScore": 5.7, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "providerMetadata": {"orgId": "28c92f92-d60d-412d-b760-e73465c3df22", "shortName": "PSF", "dateUpdated": "2026-03-04T22:14:56.190Z"}, "references": [{"tags": ["issue-tracking"], "url": "https://github.com/python/cpython/issues/145506"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/pull/145507"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/482d6f8bdba9da3725d272e8bb4a2d25fb6a603e"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/a51b1b512de1d56b3714b65628a2eae2b07e535e"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/e58e9802b9bec5cdbf48fc9bf1da5f4fda482e86"}], "source": {"discovery": "UNKNOWN"}, "title": "SourcelessFileLoader does not use io.open_code()", "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

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