# The OpenNMS Group Horizon.

Every CVE that names The OpenNMS Group Horizon among its affected products, newest first. Vendors and products are as the CNA wrote them.

## Records, newest first

- [OpenNMS denial of service via XML entity expansion](https://agentprime.io/advisories/CVE-2026-111252.md)
  `CVE-2026-111252` · CVE record: The OpenNMS Group Meridian and 1 more · CVSS 6.5 Medium · Not analysed yet · Published 15 Oct 2026 · Tags: Denial of service
- [OpenNMS REST authorization bypass via non-canonical HTTP method](https://agentprime.io/advisories/CVE-2026-111235.md)
  `CVE-2026-111235` · CVE record: The OpenNMS Group Meridian and 1 more · CVSS 9.1 Critical · Critical (CVSS 9+) · Not analysed yet · Published 15 Oct 2026 · Tags: Broken access control, CWE-204
- [OpenNMS SQL injection in shipped Asset Management JasperReports via the DATE_FORMAT parameter (ROLE_USER)](https://agentprime.io/advisories/CVE-2026-89089.md)
  `CVE-2026-89089` · CVE record: The OpenNMS Group Meridian and 1 more · CVSS 6.5 Medium · Not analysed yet · Published 10 Sept 2026 · Tags: SQL injection
- [OpenNMS XML collector XXE allows arbitrary file read from the OpenNMS host](https://agentprime.io/advisories/CVE-2026-19596.md)
  `CVE-2026-19596` · CVE record: The OpenNMS Group Meridian and 1 more · CVSS 5.9 Medium · Not analysed yet · Published 10 Sept 2026 · Tags: XML external entities (XXE)
- [OpenNMS missing authorization on /api/v2 PATCH endpoints allows unauthenticated configuration changes](https://agentprime.io/advisories/CVE-2026-89054.md)
  `CVE-2026-89054` · CVE record: The OpenNMS Group Horizon · CVSS 8.2 High · Not analysed yet · Published 10 Sept 2026 · Tags: Broken access control
- [OpenNMS v2 Alarm REST API inverted authorization check lets ROLE_REST users acknowledge alarms as any user and bypass read-only](https://agentprime.io/advisories/CVE-2026-19182.md)
  `CVE-2026-19182` · CVE record: The OpenNMS Group Meridian and 1 more · CVSS 4.3 Medium · Not analysed yet · Published 13 Aug 2026 · Tags: Broken access control
- [OpenNMS JEXL sandbox bypass in Measurements REST API allows ROLE_USER to load arbitrary classes](https://agentprime.io/advisories/CVE-2026-19135.md)
  `CVE-2026-19135` · CVE record: The OpenNMS Group Meridian and 1 more · CVSS 5.4 Medium · Not analysed yet · Published 13 Aug 2026 · Tags: Code injection
- [SQLi in OpenNMS Horizon and Meridian](https://agentprime.io/advisories/CVE-2025-53122.md)
  `CVE-2025-53122` · CVE record: The OpenNMS Group Horizon and 1 more · CVSS 6.9 Medium · Not analysed yet · Published 26 Jun 2025 · Tags: SQL injection
- [Stored XSS in multiple 33.0.8files in opennms/opennms](https://agentprime.io/advisories/CVE-2025-53121.md)
  `CVE-2025-53121` · CVE record: The OpenNMS Group Horizon and 1 more · CVSS 6.9 Medium · Not analysed yet · Published 26 Jun 2025 · Tags: Cross-site scripting (XSS)
- [Authenticated XXE Injection Via The File Editor](https://agentprime.io/advisories/CVE-2023-40612.md)
  `CVE-2023-40612` · CVE record: The OpenNMS Group Horizon and 1 more · CVSS 5.3 Medium · Not analysed yet · Published 23 Aug 2023 · Tags: Other injection

## Filters and formats

Filters are query parameters on this URL: `q` (words, as in a web search engine: `"a phrase"`, `OR`, `-word`; an id; a package or product name), `severity` (low, medium, high or critical), `critical=1`, `kev=1`, `ecosystem` (npm, pypi, packagist, go, maven, rubygems, crates, nuget, hex), `kind=package`, `assigner` (a CNA’s short name), `min_score` and `state`. Each record’s title links to its Markdown page.

- The same list as JSON: <https://api.agentprime.io/v1/advisories?technology=the-opennms-group-horizon>
- Every list: <https://agentprime.io/advisories.md>, critical: <https://agentprime.io/advisories/critical.md>; by weakness: <https://agentprime.io/advisories/tag/sql-injection.md> and the other tags in <https://agentprime.io/llms.txt>; by technology: `/advisories/technology/<slug>.md` (`fortinet-fortimail`)

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The web page: <https://agentprime.io/advisories/technology/the-opennms-group-horizon/>. Everything for agents: <https://agentprime.io/llms.txt>.