CVE-2021-26919

CVE-2021-26919: vulnerability in Apache Druid

Apache Druid Authenticated users can execute arbitrary code from malicious MySQL database systems.

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15Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 35%
Apache Druid allows users to read data from other database systems using JDBC. This functionality is to allow trusted users with the proper permissions to set up lookups or submit ingestion tasks. The MySQL JDBC driver supports certain properties, which, if left unmitigated, can allow an attacker to execute arbitrary code from a hacker-controlled malicious MySQL server within Druid server processes. This issue was addressed in Apache Druid 0.20.2
Affected products
Apache Software Foundation · Apache Druid
Related CVEs — Apache Druid

In the same product, most dangerous first.

CVE-2021-25646—Authenticated users can override system configurations in their requests which allows them to execute arbitrary code.EPSS 99.1%CVE-2021-36749—Apache Druid: The HTTP inputSource allows authenticated users to read data from other sources than intended (incomplete fix of CVE-2021-26920)EPSS 80.9%CVE-2021-26920—Apache Druid: The HTTP inputSource allows authenticated users to read data from other sources than intendedEPSS 9.5%CVE-2021-44791—Reflected XSS on certain HTTP endpointsEPSS 2.2%CVE-2022-28889—Clickjacking in the web consoleEPSS 1.9%CVE-2025-27888MEDIUMApache Druid: Server-Side Request Forgery and Cross-Site ScriptingEPSS 1.8%