CVE-2020-35476 — OS Command Injection in OpenTSDB

Description

A remote code execution vulnerability occurs in OpenTSDB through 2.4.0 via command injection in the yrange parameter. The yrange value is written to a gnuplot file in the /tmp directory. This file is then executed via the mygnuplot.sh shell script. (tsd/GraphHandler.java attempted to prevent command injections by blocking backticks but this is insufficient.)

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

OpenTSDB 2.4.0 unauthenticated command injection
exploit/linux/http/opentsdb_yrange_cmd_injection

GitHub 1 repository

CyberCTF/vulhub-opentsdb-cve-2020-35476 ★ 0 · Oct 8, 2026

Vulhub opentsdb/CVE-2020-35476: OpenTSDB Gnuplot Command Injection (CVE-2020-35476), run with Isoloom

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.

OpenTSDB <=2.4.0 - Remote Code Execution http/cves/2020/CVE-2020-35476.yaml

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

Affected packages

Ecosystem	Package	Affected	Fixed	Record
Maven	net.opentsdb:opentsdb	<= 2.4.0	—	GHSA-hv53-q76c-7f8c

OS Command Injection in OpenTSDB