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 on the server. This can potentially allow an...

CVE-2026-19135

Affected software: OpenNMS Meridian and Horizon. Vulnerability: A JEXL expression sandbox bypass exists in multiple versions, allowing a low-privileged authenticated user to submit a crafted expression to the Measurements REST API that escapes the sandbox and loads arbitrary Java classes on the s...

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 on the server. This can potentially allow an...

CVE-2026-19135 OpenNMS JEXL sandbox bypass in Measurements REST API allows ROLE_USER to load arbitrary classes

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 on the server. This can potentially allow an...

EUVD-2026-57718

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 on the server. This can potentially allow an...