OpenNMS privilege elevation vulnerability
The Horizon REST API includes a users endpoint in OpenNMS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to elevation of privilege. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 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.
OpenNMS thanks Erik Wynter for reporting this issue.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.opennms:opennms-webapp-rest | >= 31.0.8, < 32.0.2 | 32.0.2 |
References
- CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L- Weakness (CWE)
CWE-269- Platform
- Java / Kotlin (Maven)
- Package
org.opennms:opennms-webapp-rest- Disclosed
- 14.08.2023
- Updated
- 11.10.2026 11:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-w5gq-xrrp-3fxf - CC BY 4.0
Vulnerability history: org.opennms:opennms-webapp-rest
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 08.2023 08.2023
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2023: 2
- 2024: 0
- 2025: 0
- 2026: 0
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OpenNMS privilege elevation vulnerability this entry
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