{"schema_version":1,"title":"OpenNMS Horizon vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in OpenNMS Horizon: 2 in the last 7 days and 4 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-127236, was published on 12 November 2026. 2 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0.","url":"https://junglewise.ai/threats/technologies/opennms-horizon","json_url":"https://junglewise.ai/threats/technologies/opennms-horizon.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/opennms-horizon","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":0,"all_time":4,"critical":1,"exploited":0,"last_7_days":2,"last_30_days":4,"last_90_days":4,"last_365_days":4},"latest":[{"cve":"CVE-2026-127236","cvss":5.4,"slug":"cve-2026-127236-an-argument-injection-vulnerability-exists-in-the-ad-hoc-rrd","title":"OpenNMS Meridian and Horizon argument injection in RRD graph","severity":"medium","exploited":false,"published_at":"2026-11-12T19:17:03.723+00:00","url":"https://junglewise.ai/threats/cve-2026-127236-an-argument-injection-vulnerability-exists-in-the-ad-hoc-rrd"},{"cve":"CVE-2026-127235","cvss":6.1,"slug":"cve-2026-127235-a-reflected-cross-site-scripting-vulnerability-exists-in-the-web","title":"OpenNMS Meridian and Horizon reflected cross-site scripting in web UI","severity":"medium","exploited":false,"published_at":"2026-11-12T19:17:03.583+00:00","url":"https://junglewise.ai/threats/cve-2026-127235-a-reflected-cross-site-scripting-vulnerability-exists-in-the-web"},{"cve":"CVE-2026-111252","cvss":6.5,"epss":0.0025,"slug":"cve-2026-111252-a-denial-of-service-vulnerability-exists-in-the-xml-parsing-of","title":"OpenNMS Meridian and Horizon XML entity expansion denial of service","severity":"medium","exploited":false,"published_at":"2026-10-15T19:17:36.827+00:00","url":"https://junglewise.ai/threats/cve-2026-111252-a-denial-of-service-vulnerability-exists-in-the-xml-parsing-of"},{"cve":"CVE-2026-111235","cvss":9.1,"epss":0.0038,"slug":"cve-2026-111235-an-authorization-bypass-vulnerability-exists-in-the-rest-api-of","title":"OpenNMS Meridian and Horizon REST API authorization bypass","severity":"critical","exploited":false,"published_at":"2026-10-15T19:17:36.693+00:00","url":"https://junglewise.ai/threats/cve-2026-111235-an-authorization-bypass-vulnerability-exists-in-the-rest-api-of"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":1,"exploited":0,"vulnerabilities":2},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":2}],"related":[{"name":"OpenNMS Meridian","slug":"meridian","vulnerabilities":6,"url":"https://junglewise.ai/threats/technologies/meridian"}],"technology":{"hub":true,"name":"OpenNMS Horizon","slug":"opennms-horizon","vendor":{"hub":true,"name":"OpenNMS","slug":"opennms","url":"https://junglewise.ai/threats/vendors/opennms"},"aliases":[],"category":"monitoring","url":"https://junglewise.ai/threats/technologies/opennms-horizon"},"most_severe":[{"cve":"CVE-2026-111235","cvss":9.1,"epss":0.0038,"slug":"cve-2026-111235-an-authorization-bypass-vulnerability-exists-in-the-rest-api-of","title":"OpenNMS Meridian and Horizon REST API authorization bypass","severity":"critical","exploited":false,"published_at":"2026-10-15T19:17:36.693+00:00","url":"https://junglewise.ai/threats/cve-2026-111235-an-authorization-bypass-vulnerability-exists-in-the-rest-api-of"},{"cve":"CVE-2026-111252","cvss":6.5,"epss":0.0025,"slug":"cve-2026-111252-a-denial-of-service-vulnerability-exists-in-the-xml-parsing-of","title":"OpenNMS Meridian and Horizon XML entity expansion denial of service","severity":"medium","exploited":false,"published_at":"2026-10-15T19:17:36.827+00:00","url":"https://junglewise.ai/threats/cve-2026-111252-a-denial-of-service-vulnerability-exists-in-the-xml-parsing-of"},{"cve":"CVE-2026-127235","cvss":6.1,"slug":"cve-2026-127235-a-reflected-cross-site-scripting-vulnerability-exists-in-the-web","title":"OpenNMS Meridian and Horizon reflected cross-site scripting in web UI","severity":"medium","exploited":false,"published_at":"2026-11-12T19:17:03.583+00:00","url":"https://junglewise.ai/threats/cve-2026-127235-a-reflected-cross-site-scripting-vulnerability-exists-in-the-web"},{"cve":"CVE-2026-127236","cvss":5.4,"slug":"cve-2026-127236-an-argument-injection-vulnerability-exists-in-the-ad-hoc-rrd","title":"OpenNMS Meridian and Horizon argument injection in RRD graph","severity":"medium","exploited":false,"published_at":"2026-11-12T19:17:03.723+00:00","url":"https://junglewise.ai/threats/cve-2026-127236-an-argument-injection-vulnerability-exists-in-the-ad-hoc-rrd"}],"generated_at":"2026-11-13T03:07:00.155039+00:00"}