CVE-2023-25826: Remote Code Execution in OpenTSDB

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 43.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-05-03 · updated 2026-06-17
Weakness: CWE-78

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.

Affected products

OpenTSDB: from 1.0.0 through 2.4.1

References

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

Get alerted when CVE-2023-25826 or the next vulnerability affects your stack