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Fencer Intel
critical 9.8

CVE-2020-35476 in the critical feed json

OS Command Injection in OpenTSDB

published 5y ago modified 4mo ago also GHSA-hv53-q76c-7f8c , EUVD-2021-1758

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
85.3%
EPSS 85.3% chance of exploitation in 30 days, percentile 99.7%
public exploits
1
Metasploit, plus a Nuclei check

Summary

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.)

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Timeline

  1. First public exploit (Metasploit exploit/linux/http/opentsdb_yrange_cmd_injection)
  2. Published

Exploit prediction

85.33% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven net.opentsdb:opentsdb
<=2.4.0
 no fix listed

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.