CVE-2023-25826Public exploitNetwork attack vector

Unauthenticated code execution via newline-bypassed plot parameters

Published May 3, 2023 · Updated Feb 13, 2025

OS command injection in OpenTSDB 2.4.1 and earlier allows remote attackers to execute arbitrary code through the legacy HTTP query API. GraphHandler accepts newline and control characters in multiple decoded graph parameters, then incorporates those values into Gnuplot configuration despite regex validation. No credentials or user interaction are required, and commands run with the privileges of the OpenTSDB host process.

CVSS severity9.8
Critical
EPSS probability42.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in OpenTSDB 2.4.1 and earlier allows remote attackers to execute arbitrary code through the legacy HTTP query API. GraphHandler accepts newline and control characters in multiple decoded graph parameters, then incorporates those values into Gnuplot configuration despite regex validation. No credentials or user interaction are required, and commands run with the privileges of the OpenTSDB host process.

The record

CVE
CVE-2023-25826
Published
May 3, 2023
Updated
Feb 13, 2025
Vendor
OpenTSDB
Product
OpenTSDB
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenTSDB · OpenTSDBversion=0 <=2.4.1

Published CVSS scores

9.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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