Show plain JSON{"id": "CVE-2025-4516", "cveTags": [], "metrics": {"cvssMetricV40": [{"type": "Secondary", "source": "cna@python.org", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.9, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/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": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "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": "2025-05-15T14:15:31.753", "references": [{"url": "https://github.com/python/cpython/commit/4398b788ffc1f954a2c552da285477d42a571292", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/6279eb8c076d89d3739a6edb393e43c7929b429d", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/69b4387f78f413e8c47572a85b3478c47eba8142", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/73b3040f592436385007918887b7e2132aa8431f", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/8d35fd1b34935221aff23a1ab69a429dd156be77", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/9f69a58623bd01349a18ba0c7a9cb1dad6a51e8e", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/commit/ab9893c40609935e0d40a6d2a7307ea51aec598b", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/issues/133767", "source": "cna@python.org"}, {"url": "https://github.com/python/cpython/pull/129648", "source": "cna@python.org"}, {"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/L75IPBBTSCYEF56I2M4KIW353BB3AY74/", "source": "cna@python.org"}, {"url": "http://www.openwall.com/lists/oss-security/2025/05/16/4", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/05/19/1", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "cna@python.org", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "There is an issue in CPython when using `bytes.decode(\"unicode_escape\", error=\"ignore|replace\")`. If you are not using the \"unicode_escape\" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode() call in a try-except catching the DecodeError."}, {"lang": "es", "value": "Hay un problema en CPython al usar `bytes.decode(\"unicode_escape\", error=\"ignore|replace\")`. Si no usa la codificaci\u00f3n \"unicode_escape\" ni un controlador de errores, su uso no se ve afectado. Para solucionar este problema, puede dejar de usar el controlador `error=` y, en su lugar, encapsular la llamada `bytes.decode()` en un `try-except` que capture el `DecodeError`."}], "lastModified": "2025-06-03T14:15:49.697", "sourceIdentifier": "cna@python.org"} 