CVE-2020-35476

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 85.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-12-16 · updated 2026-06-17
Weakness: CWE-78

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.)

Affected products

OpenTSDB: through 2.4.0

References

http://packetstormsecurity.com/files/170331/OpenTSDB-2.4.0-Command-Injection.html
https://github.com/OpenTSDB/opentsdb/issues/2051
http://packetstormsecurity.com/files/170331/OpenTSDB-2.4.0-Command-Injection.html
https://github.com/OpenTSDB/opentsdb/issues/2051

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