https://vulnogram.org/ Most recent CVEs assigned by The OpenNMS Group (opennms). https://vulnogram.org/seaview/icons/opennms.png https://vulnogram.org/ Wed, 21 Oct 2026 07:00:07 GMT https://vulnogram.org/CVE-2026-111252 https://vulnogram.org/CVE-2026-111252 A denial of service vulnerability exists in the XML parsing of multiple versions of OpenNMS Meridian and Horizon. OpenNMS parsed XML without an effective limit on entity expansion. A document with a DOCTYPE that declares internal entities can expand… Medium Thu, 15 Oct 2026 18:56:18 GMT https://vulnogram.org/CVE-2026-111235 https://vulnogram.org/CVE-2026-111235 An authorization bypass vulnerability exists in the REST API of multiple versions of OpenNMS Meridian and Horizon. The /rest/** Spring Security filter chains authorize requests with intercept-url rules that name the HTTP method as an uppercase token,… Critical Network Exploitable Thu, 15 Oct 2026 18:45:06 GMT https://vulnogram.org/CVE-2026-89089 https://vulnogram.org/CVE-2026-89089 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 c… Medium Thu, 10 Sep 2026 20:30:58 GMT https://vulnogram.org/CVE-2026-19596 https://vulnogram.org/CVE-2026-19596 An XML External Entity (XXE) vulnerability exists in the XML collector of multiple versions of OpenNMS Meridian and Horizon. When OpenNMS collects XML from a source whose response is attacker-controlled (for example a compromised monitored host or an… Medium Network Exploitable Thu, 10 Sep 2026 20:08:50 GMT https://vulnogram.org/CVE-2026-89054 https://vulnogram.org/CVE-2026-89054 A missing authorization vulnerability in OpenNMS Horizon allows configuration changes without authentication. The Spring Security policy for the /api/v2 REST API defines authorization rules for every HTTP method except PATCH, so the shipped @PATCH co… High Network Exploitable Thu, 10 Sep 2026 19:36:21 GMT https://vulnogram.org/CVE-2026-19182 https://vulnogram.org/CVE-2026-19182 An incorrect authorization check in the v2 Alarm REST API in OpenNMS Meridian and Horizon allows a low-privileged authenticated user (ROLE_REST) to acknowledge, escalate, or clear alarms recorded as an arbitrary username, and, when also assigned ROLE… Medium Thu, 13 Aug 2026 04:50:39 GMT https://vulnogram.org/CVE-2026-19135 https://vulnogram.org/CVE-2026-19135 A JEXL expression sandbox bypass exists in multiple versions of OpenNMS Meridian and Horizon. A low-privileged authenticated user can submit a crafted expression to the Measurements REST API that escapes the sandbox and loads arbitrary Java classes o… Medium Thu, 13 Aug 2026 04:47:25 GMT https://vulnogram.org/CVE-2025-53122 https://vulnogram.org/CVE-2025-53122 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in OpenNMS Horizon and Meridian applications allows SQL Injection. Users should upgrade to Meridian 2024.2.6 or newer, or Horizon 33.16 or newer. Merid… Medium Thu, 26 Jun 2025 19:49:43 GMT https://vulnogram.org/CVE-2025-53121 https://vulnogram.org/CVE-2025-53121 Multiple stored XSS were found on different nodes with unsanitized parameters in OpenMNS Horizon 33.0.8 and versions earlier than 33.1.6 on multiple platforms that allow an attacker to store on database and then inject HTML and/or Javascript on the p… Medium Thu, 26 Jun 2025 18:51:35 GMT https://vulnogram.org/CVE-2023-40314 https://vulnogram.org/CVE-2023-40314 Cross-site scripting in bootstrap.jsp in multiple versions of OpenNMS Meridian and Horizon allows an attacker access to confidential session information. The solution is to upgrade to Horizon 32.0.5 or newer and Meridian 2023.1.9 or newer Meridian an… Medium Thu, 16 Nov 2023 21:14:07 GMT https://vulnogram.org/CVE-2023-40612 https://vulnogram.org/CVE-2023-40612 In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2, the file editor which is accessible to any user with ROLE_FILESYSTEM_EDITOR privileges is vulnerable to XXE injection attacks. The solution is to upgrade to Meridian 2023.1.5 or Horizon 32.0… Medium Wed, 23 Aug 2023 18:22:49 GMT https://vulnogram.org/CVE-2023-40315 https://vulnogram.org/CVE-2023-40315 In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 and related Meridian versions, any user that has the ROLE_FILESYSTEM_EDITOR can easily escalate their privileges to ROLE_ADMIN or any other role. The solution is to upgrade to Meridian 2023.1… Medium Thu, 17 Aug 2023 19:04:01 GMT https://vulnogram.org/CVE-2023-40313 https://vulnogram.org/CVE-2023-40313 A BeanShell interpreter in remote server mode runs in OpenMNS Horizon versions earlier than 32.0.2 and in related Meridian versions which could allow arbitrary remote Java code execution. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 20… High Thu, 17 Aug 2023 18:24:08 GMT https://vulnogram.org/CVE-2023-40312 https://vulnogram.org/CVE-2023-40312 Multiple reflected XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms that an attacker can modify to craft a malicious XSS payload. The solution is to upg… Medium Mon, 14 Aug 2023 17:35:26 GMT https://vulnogram.org/CVE-2023-40311 https://vulnogram.org/CVE-2023-40311 Multiple stored XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms that allow an attacker to store on database and then load on JSPs or Angular templates.… Medium Mon, 14 Aug 2023 17:31:29 GMT https://vulnogram.org/CVE-2023-0872 https://vulnogram.org/CVE-2023-0872 The Horizon REST API includes a users endpoint in OpenMNS 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… High Mon, 14 Aug 2023 17:21:58 GMT https://vulnogram.org/CVE-2023-0871 https://vulnogram.org/CVE-2023-0871 XXE injection in /rtc/post/ endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to XML external entity (XXE) injection, which can be used for instance to force Horizon to make arbitrary HTTP request… Medium Fri, 11 Aug 2023 16:13:50 GMT https://vulnogram.org/CVE-2023-0870 https://vulnogram.org/CVE-2023-0870 A form can be manipulated with cross-site request forgery in multiple versions of OpenNMS Meridian and Horizon. This can potentially allow an attacker to gain access to confidential information and compromise integrity. The solution is to upgrade to… High Wed, 22 Mar 2023 18:16:42 GMT https://vulnogram.org/CVE-2023-0815 https://vulnogram.org/CVE-2023-0815 Potential Insertion of Sensitive Information into Jetty Log Files in multiple versions of OpenNMS Meridian and Horizon could allow disclosure of usernames and passwords if the logging level is set to debug. Users should upgrade to Meridian 2023.1.0 o… Medium Thu, 23 Feb 2023 14:52:05 GMT https://vulnogram.org/CVE-2023-0867 https://vulnogram.org/CVE-2023-0867 Multiple stored and reflected cross-site scripting vulnerabilities in webapp jsp pages in multiple versions of OpenNMS Meridian and Horizon could allow an attacker access to confidential session information. Users should upgrade to Meridian 2023.1.0… Medium Thu, 23 Feb 2023 14:49:30 GMT https://vulnogram.org/CVE-2023-0868 https://vulnogram.org/CVE-2023-0868 Reflected cross-site scripting in graph results in multiple versions of OpenNMS Meridian and Horizon could allow an attacker access to steal session cookies. Users should upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4. Meridian and Horizon… Medium Thu, 23 Feb 2023 14:46:03 GMT https://vulnogram.org/CVE-2023-0869 https://vulnogram.org/CVE-2023-0869 Cross-site scripting in outage/list.htm in multiple versions of OpenNMS Meridian and Horizon allows an attacker access to confidential session information. The solution is to upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4 or newer. Meridian… Medium Thu, 23 Feb 2023 14:43:40 GMT https://vulnogram.org/CVE-2023-0846 https://vulnogram.org/CVE-2023-0846 Unauthenticated, stored cross-site scripting in the display of alarm reduction keys in multiple versions of OpenNMS Horizon and Meridian could allow an attacker access to confidential session information. Users should upgrade to Meridian 2023.1.0 or… Medium Wed, 22 Feb 2023 18:35:19 GMT