CVE-2020-35476
CriticalExploitedPublic exploitOS Command Injection in OpenTSDB
Published Aug 2, 2021 · Updated Jul 8, 2026 · Also known as GHSA-hv53-q76c-7f8c
Key Facts
Patch immediately- CVE-2020-35476 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Opentsdb, net.opentsdb:opentsdb (maven).
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023. Public exploit code is available.
- EPSS estimates a 85% probability of exploitation in the next 30 days.
- Fixed versions are available, including Opentsdb <=2.4.0, Opentsdb 2.4.0.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
85%
Higher than 99.7% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2020-35476 brief as a PDF
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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.)
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jan 21, 2024 | n/a | Not reported |
| CIRCL KEV | Oct 14, 2023 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| OpentsdbOpentsdb | See advisory | 2.4.0 |
| net.opentsdb:opentsdbmaven | See advisory | n/a |
Patched Releases
Opentsdb
<=2.4.0
Timeline
Publicly disclosed
Aug 2, 2021
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Jan 21, 2024
Last updated
Jul 8, 2026
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2020-35476
- exploithttp://packetstormsecurity.com/files/170331/OpenTSDB-2.4.0-Command-Injection.html
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
A remote code execution vulnerability occurs in OpenTSDB through 2.4.0 via command injection in the yrange parameter.
Affected: Opentsdb; net.opentsdb:opentsdb (maven). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Opentsdb <=2.4.0, Opentsdb 2.4.0.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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