CVE-2026-89089 OpenNMS SQL injection in shipped Asset Management JasperReports via the DATE_FORMAT parameter (ROLE_USER)
Low-privileged users can execute arbitrary SQL via JasperReports parameters to read sensitive database credentials and data in OpenNMS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89089?
CVE-2026-89089 is a medium-severity SQL injection vulnerability in The OpenNMS Group Horizon, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-89
Which versions are affected by CVE-2026-89089?
How do I fix CVE-2026-89089?
No fix has been published for CVE-2026-89089 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-89089 being exploited?
There is no known exploitation of CVE-2026-89089 in the wild and no public exploit code.
Sources
Also known as GHSA-fcjx-6cv6-5wqj.