CVE-2020-35476

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2021-08-02. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 85%
CISA-KEV: Not listedEPSS: 85%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.)

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
83(Track*)
EG Risk 83/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation85% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
99.7%
KEV
Not listed

Published

December 16, 2020

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jun 7, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

OpenTSDB 2.4.0 Remote Code Execution · Issue #2051 · OpenTSDB/opentsdb · GitHub

https://github.com/OpenTSDB/opentsdb/issues/2051

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
mavennet.opentsdb:opentsdb—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
net.opentsdb:opentsdb2.1.3 ... 2.4.0RC1 (12 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 21× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:53 UTCEG score recompute
  2. 2026-07-22 22:39 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
  4. 2026-07-20 17:04 UTCEPSS rescore
  5. 2026-07-20 17:04 UTCEPSS rescore
  6. 2026-07-16 16:59 UTCEPSS rescore
  7. 2026-07-13 22:27 UTCEPSS rescore
  8. 2026-07-13 22:27 UTCEPSS rescore
  9. 2026-07-12 21:37 UTCOSV refresh
  10. 2026-07-11 08:25 UTCEPSS rescore
  11. 2026-07-11 08:25 UTCEPSS rescore
  12. 2026-07-06 02:21 UTCEPSS rescore
  13. 2026-07-06 02:21 UTCEPSS rescore
  14. 2026-07-04 06:29 UTCEPSS rescore
  15. 2026-07-04 06:29 UTCEPSS rescore
  16. 2026-06-30 23:20 UTCEPSS rescore
  17. 2026-06-30 23:20 UTCEPSS rescore
  18. 2026-06-25 13:48 UTCEPSS rescore
  19. 2026-06-24 07:20 UTCOSV refresh
  20. 2026-06-23 21:31 UTCEPSS rescore
  21. 2026-06-23 21:31 UTCEPSS rescore
  22. 2026-06-17 17:50 UTCEPSS rescore
  23. 2026-06-15 17:46 UTCEPSS rescore
  24. 2026-06-12 23:10 UTCEPSS rescore
  25. 2026-06-07 10:59 UTCOSV refresh
Show 7 more
  1. 2026-05-31 22:29 UTCEPSS rescore
  2. 2026-05-31 22:29 UTCEPSS rescore
  3. 2026-05-29 13:42 UTCEPSS rescore
  4. 2026-05-28 13:43 UTCEPSS rescore
  5. 2026-05-28 13:43 UTCEPSS rescore
  6. 2026-05-23 04:06 UTCEG score recompute
  7. 2026-05-23 04:06 UTCGHSA enrichment

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCglowbase/CVE-2020-35476
    First seen Jan 30, 2022

    A remote code execution vulnerability occurs in OpenTSDB through 2.4.0 via command injection in the yrange parameter.

    Open source ↗
  • Metasploitexploit/linux/http/opentsdb_yrange_cmd_injection✓ verified
    First seen Nov 18, 2020

    OpenTSDB 2.4.0 unauthenticated command injection

    Open source ↗
  • Nucleihttp/cves/2020/CVE-2020-35476.yaml
    First seen Jan 1, 2020

    OpenTSDB <=2.4.0 - Remote Code Execution

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2020-35476?
CVE-2020-35476 is a critical vulnerability published on December 16, 2020. 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…
When was CVE-2020-35476 disclosed?
CVE-2020-35476 was first published in the National Vulnerability Database on December 16, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-35476 actively exploited?
CVE-2020-35476 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-35476?
CVE-2020-35476 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-35476?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-35476, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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