CVE-2026-42316

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{"affected": [{"affectedData": [{"product": "kafka-sink-azure-kusto", "vendor": "Azure", "versions": [{"status": "affected", "version": "< 5.2.3"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "kafka-sink-azure-kusto Kafka Connect plugin is the official Microsoft sink for Azure Data Explorer (Kusto). Prior to 5.2.3, kafka-sink-azure-kusto did not sanitize user-controlled values inside the kusto.tables.topics.mapping configuration. The db, table, mapping, and format fields of each mapping entry were interpolated directly into KQL management/query commands via String.formatted(...) (e.g., FETCH_TABLE_COMMAND.formatted(table) \u2192 \"<table> | count\", FETCH_TABLE_MAPPING_COMMAND.formatted(table, format, mapping) \u2192 \".show table <table> ingestion <format> mapping '<mapping>'\"). An actor able to influence the connector configuration (for example, someone with permissions to submit or edit Kafka Connect connector configs) could embed KQL metacharacters (;, |, ') to execute arbitrary management commands in the context of the connector's service principal \u2014 enabling schema enumeration/modification, ingestion-mapping tampering, or changes to streaming/retention policies on the target Azure Data Explorer database. This is a tampering vulnerability. Exploitation requires privileged access to the connector configuration; no end-user interaction or Kafka record payload is involved. This vulnerability is fixed in 5.2.3."}, {"lang": "es", "value": "El plugin kafka-sink-azure-kusto de Kafka Connect es el sink oficial de Microsoft para Azure Data Explorer (Kusto). Antes de la versi\u00f3n 5.2.3, kafka-sink-azure-kusto no saneaba los valores controlados por el usuario dentro de la configuraci\u00f3n kusto.tables.topics.mapping. Los campos db, table, mapping y format de cada entrada de mapeo se interpolaban directamente en comandos de gesti\u00f3n/consulta de KQL a trav\u00e9s de String.formatted(...) (por ejemplo, FETCH_TABLE_COMMAND.formatted(table) ? \u2019[table] | count\u2019, FETCH_TABLE_MAPPING_COMMAND.formatted(table, format, mapping) ? \u2019.show table [table] ingestion [format] mapping \u2019[mapping]\u2019\u2019). Un actor capaz de influir en la configuraci\u00f3n del conector (por ejemplo, alguien con permisos para enviar o editar configuraciones de conectores de Kafka Connect) podr\u00eda incrustar metacaracteres de KQL (;, |, \u2019) para ejecutar comandos de gesti\u00f3n arbitrarios en el contexto del principal de servicio del conector - lo que permitir\u00eda la enumeraci\u00f3n/modificaci\u00f3n de esquemas, la manipulaci\u00f3n de mapeos de ingesta o cambios en las pol\u00edticas de streaming/retenci\u00f3n en la base de datos de destino de Azure Data Explorer. Esto es una vulnerabilidad de manipulaci\u00f3n. La explotaci\u00f3n requiere acceso privilegiado a la configuraci\u00f3n del conector; no se requiere interacci\u00f3n del usuario final ni carga \u00fatil de registro de Kafka. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 5.2.3."}], "id": "CVE-2026-42316", "lastModified": "2026-10-26T18:10:00.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42316", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-11T17:27:18.333065Z", "version": "2.0.3"}}]}, "published": "2026-05-11T18:16:35.400", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Azure/kafka-sink-azure-kusto/pull/155"}, {"source": "security-advisories@github.com", "url": "https://github.com/Azure/kafka-sink-azure-kusto/releases/tag/v5.2.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/Azure/kafka-sink-azure-kusto/security/advisories/GHSA-c9mr-mqvh-6wgj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-943"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.2.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "kafka-sink-azure-kusto", "source": "cna", "vendor": "Azure"}, "product": "kafka-sink-azure-kusto", "vendor": "azure"}], "created": "2026-05-11T18:45:25.668632+00:00", "updated": "2026-05-12T09:22:52.638859+00:00", "vendors": ["azure", "azure$PRODUCT$kafka-sink-azure-kusto"]}