---
id: CVE-2026-89089
title: >-
  A SQL injection vulnerability exists in the JasperReports-based reporting
  feature of multiple versions of OpenNMS Meridian and Horizon
summary: >-
  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 "…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-89
vendor: The OpenNMS Group
product: Meridian
affected:
  - Meridian >= 2024.1.0 < 2024.3.13
  - Meridian >= 2025.0.0 < 2025.0.10
  - Horizon >= 36.0.0 < 36.0.4
published: '2026-09-10'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:21:34.307'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89089'
references:
  - url: 'https://github.com/OpenNMS/opennms/pull/8832'
    label: security@opennms.com
tags:
  - nvd
  - cve.org
epss: 0.00365
epssPercentile: 0.27583
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T14:51:29.896443Z'
ingestedAt: '2026-09-13T21:21:43.970Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.