CVE-2026-42316

{"id": "CVE-2026-42316", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.2}]}, "published": "2026-05-11T18:16:35.400", "references": [{"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", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-943"}]}], "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."}], "lastModified": "2026-05-13T16:53:33.310", "sourceIdentifier": "security-advisories@github.com"}