Critical Improper Authorization in Apache Kylin REST API - CVE-2026-62393

OS command injection in Apache Kylin (versions 4 through 5.0.3) allows attackers to execute arbitrary operating-system commands by supplying malicious job configuration parameters that a backend API passes unsanitized to the OS command line. Because Kylin runs as a distributed analytics engine, successful exploitation yields full host compromise with the privileges of the Kylin service account. Per the vendor CVSS (AV:N/PR:N), the flaw is scored as network-reachable and unauthenticated with high impact across confidentiality, integrity, and availability; no public exploit is identified at time of analysis, and it is not listed in CISA KEV.

SQL injection in Apache Kylin (versions 4 through 5.0.3) allows attackers to inject arbitrary SQL through a backend API used to refresh the table catalog, where untrusted input is concatenated into a dynamically generated SQL statement. The upstream CVSS 3.1 vector rates this as unauthenticated (PR:N) with full confidentiality, integrity, and availability impact (9.8), enabling database read/write and potentially further compromise. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.