CVE-2021-25646 — Authenticated users can override system configurations in their requests which allows them to execute arbitrary code.

Description

Apache Druid includes the ability to execute user-provided JavaScript code embedded in various types of requests. This functionality is intended for use in high-trust environments, and is disabled by default. However, in Druid 0.20.0 and earlier, it is possible for an authenticated user to send a specially-crafted request that forces Druid to run user-provided JavaScript code for that request, regardless of server configuration. This can be leveraged to execute code on the target machine with the privileges of the Druid server process.

Affected products

Vendor	Product	Affected	Fixed
Apache Software Foundation	Apache Druid	0.20.0 and earlier – ≤ 0.20.0	—

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Apache Druid 0.20.0 Remote Command Execution
exploit/linux/http/apache_druid_js_rce

GitHub 13 repositories · most starred shown

1n7erface/PocList ★ 1,071 · Mar 11, 2021

Alibaba-Nacos-Unauthorized/ApacheDruid-RCE_CVE-2021-25646/MS-Exchange-SSRF-CVE-2021-26885/Oracle-WebLogic-CVE-2021-2109_RCE/RG-CNVD-2021-14536/RJ-SSL-VPN-UltraVires/Redis-Unauthorized-RCE/TDOA-V11.7-…
yaunsky/cve-2021-25646 ★ 17 · Feb 3, 2021

Apache Druid 远程代码执行;检测脚本
k7pro/CVE-2021-25646-exp ★ 4 · Oct 4, 2024

CVE-2021-25646 Apache Druid 远程代码执行漏洞检测和利用工具
j2ekim/CVE-2021-25646 ★ 4 · Dec 12, 2021

Apache Druid remote code execution vulnerability - Apache Druid 远程代码执行漏洞利用 CVE-2021-25646
givemefivw/CVE-2021-25646 ★ 3 · Apr 14, 2021

CVE-2021-25646 Apache Druid 远程代码执行漏洞 Wker脚本
Vulnmachines/Apache-Druid-CVE-2021-25646 ★ 3 · Feb 13, 2021
lp008/CVE-2021-25646 ★ 2 · Feb 3, 2021
tiemio/RCE-PoC-CVE-2021-25646 ★ 1 · May 8, 2025

A proof-of-concept for the CVE-2021-25646, which allows for Command Injection
Ormicron/CVE-2021-25646-GUI ★ 1 · Feb 4, 2021

CSharp CVE-2021-25646-GUI
gps1949/CVE-2021-25646 ★ 0 · Mar 12, 2025

Apache Druid 远程代码执行复现（CVE-2021-25646）

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Apache Druid - Remote Code Execution http/cves/2021/CVE-2021-25646.yaml

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Affected packages

Ecosystem	Package	Affected	Fixed	Record
Maven	org.apache.druid:druid	< 0.20.1	0.20.1	GHSA-wrqf-rrrw-w3mg

Authenticated users can override system configurations in their requests which allows them to execute arbitrary code.