CVE-2026-89089
Received Received - Intake

SQL Injection in OpenNMS Meridian and Horizon Reporting Feature

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: The OpenNMS Group

Description
A SQL injection vulnerability exists in the JasperReports-based reporting feature of multiple versions of OpenNMS Meridian and Horizon. A low-privileged authenticated user (ROLE_USER) can run the shipped, default-enabled online reports "Maintenance contracts expired" (AssetManagementMaintExpired) and "Maintenance contracts strategy" (AssetManagementMaintStrategy) via the reporting REST API (POST /rest/reports/{id}) and supply a DATE_FORMAT parameter that the report templates substitute literally, un-escaped, into their SQL queries. This lets an attacker execute arbitrary SQL against the OpenNMS database and read arbitrary data, including database-stored secrets such as provisioning and notification credentials and SNMP community strings. The solution is to upgrade to Meridian 2024.3.13, 2025.0.10 and Horizon 36.0.4 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

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Meta Information

Published
2026-09-10
Last Modified
2026-09-10
Generated
2026-09-11
AI Q&A
2026-09-11
EPSS Evaluated
N/A
NVD
CVE-2026-89089

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
opennms meridian From 2024.3.13 (inc)
opennms meridian From 2025.0.10 (inc)
opennms horizon From 36.0.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

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Executive Summary

This is a SQL injection vulnerability in OpenNMS Meridian and Horizon. A low-privileged authenticated user can exploit default-enabled online reports via the reporting REST API by supplying a DATE_FORMAT parameter. The parameter is inserted un-escaped into SQL queries, allowing arbitrary SQL execution against the database.

Impact Analysis

An attacker could read arbitrary data from the OpenNMS database, including sensitive information like provisioning credentials, notification credentials, and SNMP community strings. This could lead to unauthorized access, data breaches, or further network compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, potentially violating GDPR (data protection) and HIPAA (health information privacy) requirements. Organizations may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Upgrade to Meridian 2024.3.13, 2025.0.10 or Horizon 36.0.4 or newer. Ensure OpenNMS instances are not directly accessible from the Internet as per installation instructions.

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