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Vulnerability record · CVE-2023-25826 · published 3 May 2023

CVE-2023-25826: Opentsdb os command injection vulnerability

Opentsdb · Opentsdb

Due to insufficient validation of parameters passed to the legacy HTTP query API, it is possible to inject crafted OS commands into multiple parameters and execute malicious code on the OpenTSDB host system. This exploit exists due to an incomplete fix that was made when this vulnerability was previously disclosed as CVE-2020-35476. Regex validation that was implemented to restrict allowed input to the query API does not work as intended, allowing crafted commands to bypass validation.

9.8 CVSS 3.1 Critical EPSS 43% · top 1.3% CWE-78 · OS command injection
9.8CVSS 3.1 base score
43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Due to insufficient validation of parameters passed to the legacy HTTP query API, it is possible to inject crafted OS commands into multiple parameters and execute malicious code on the OpenTSDB host system. This exploit exists due to an incomplete fix that was made when this vulnerability was previously disclosed as CVE-2020-35476. Regex validation that was implemented to restrict allowed input to the query API does not work as intended, allowing crafted commands to bypass validation.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/174570/OpenTSDB-2.4.1-Unauthenticated-Command-Injection.html
https://github.com/OpenTSDB/opentsdb/pull/2275 Patch
https://www.synopsys.com/blogs/software-security/opentsdb/ Third Party Advisory
http://packetstormsecurity.com/files/174570/OpenTSDB-2.4.1-Unauthenticated-Command-Injection.html
https://github.com/OpenTSDB/opentsdb/pull/2275 Patch
https://www.synopsys.com/blogs/software-security/opentsdb/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-25826), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.