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CVE-2021-26919— Apache Druid Authenticated users can execute arbitrary code from malicious MySQL database systems.

Quick assessment

Affected
Apache Software Foundation Apache Druid
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Druid是美国阿帕奇软件（Apache）基金会的一款使用Java语言编写的、面向列的开源分布式数据库。 Apache Druid 0.20.2 存在安全漏洞，攻击者可利用该漏洞可以在Druid服务器的MYSQL进程中执行任意代码。

AI Predicted 9.8 Difficulty: Easy EPSS 35.19% · P98

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-26919

Vulnerability Information
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Vulnerability Title
Apache Druid Authenticated users can execute arbitrary code from malicious MySQL database systems.
Source: CVE Program / CVE List V5
Vulnerability Description
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
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Druid 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Druid是美国阿帕奇软件（Apache）基金会的一款使用Java语言编写的、面向列的开源分布式数据库。 Apache Druid 0.20.2 存在安全漏洞，攻击者可利用该漏洞可以在Druid服务器的MYSQL进程中执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Druid Apache Druid ~ 0.20.1 -

II. Public POCs for CVE-2021-26919

# POC Description Source Link Shenlong Link
1 None https://github.com/Threekiii/Awesome-POC/blob/master/%E6%95%B0%E6%8D%AE%E5%BA%93%E6%BC%8F%E6%B4%9E/Apache%20Druid%20%E8%BF%9C%E7%A8%8B%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E%20CVE-2021-26919.md POC Details
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III. Intelligence Information for CVE-2021-26919

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Mailing List Discussions for CVE-2021-26919 (9)

IV. Related Vulnerabilities

Same product: Apache Druid
Same vendor: Apache Software Foundation

V. Comments for CVE-2021-26919

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