CVE-2026-111235
The OpenNMS Group Meridian
- The OpenNMS Group Meridian
- Critical
- CVSS 9.1
- EPSS 0.38%
- Fixed version listed
What to do
Fixed version listed
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| The OpenNMS Group Meridian | from 2024.1.0, before 2024.3.14; from 2025.0.0, before 2025.0.11; from 2026.0.0, before 2026.0.1 | 2024.3.14, 2025.0.11, 2026.0.1 |
| The OpenNMS Group Horizon | from 36.0.0, before 36.0.5 | 36.0.5 |
Advisories and fixes
- Patch github.com
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.1 (v3.1, scored by OpenNMS)
- EPSS
- 0.38% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 24, 2026)
- CISA's SSVC decision points
- Exploitation: none. Automatable: yes. Technical impact: total. As of Oct 16, 2026.
- Weakness
- CWE-862: Missing Authorization; CWE-863: Incorrect Authorization; CWE-204: Observable Response Discrepancy
- Vendor
- The OpenNMS Group, Meridian
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.