Which products and versions are affected by CVE-2023-25826?

Affected: OpenTSDB; net.opentsdb:opentsdb (maven). The full list is in the CVE brief.

Is CVE-2023-25826 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2023-25826 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2023-25826?

Public exploit code is available.

Is there a fix for CVE-2023-25826?

Fixed versions are available, including OpenTSDB <=2.4.1, OpenTSDB 2.4.1.

How urgently should CVE-2023-25826 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

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Emerging threatsCritical

CVE-2023-25826OpenTSDB OS Command Injection

Q: What is CVE-2023-25826?

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.

Q: How urgently should CVE-2023-25826 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Command injection in OpenTSDB

Published May 3, 2023 · Updated Aug 12, 2026 · Also known as GHSA-h475-7v3c-26q7

Key Facts

Patch immediately

CVE-2023-25826 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting OpenTSDB, net.opentsdb:opentsdb (maven).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 43% probability of exploitation in the next 30 days.
Fixed versions are available, including OpenTSDB <=2.4.1, OpenTSDB 2.4.1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

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)

43%

Higher than 98.7% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

59/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

advisoryhttps://www.cve.org/CVERecord?id=CVE-2023-25826
advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2023-25826
advisoryGHSA advisory
advisoryhttps://www.synopsys.com/blogs/software-security/opentsdb/
patchhttps://github.com/OpenTSDB/opentsdb/pull/2275

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

3 affected entries in total

Product	Affected versions	Fixed in
OpenTSDBOpentsdb	See advisory	2.4.1
net.opentsdb:opentsdbmaven	See advisory	n/a

Patched Releases

OpenTSDB

<=2.4.1

Timeline

Publicly disclosed
May 3, 2023
Last updated
Aug 12, 2026

Weakness Type

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

References

4 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: OpenTSDB; net.opentsdb:opentsdb (maven). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including OpenTSDB <=2.4.1, OpenTSDB 2.4.1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Is CVE-2023-25826 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

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