CVE-2026-19596 | OpenNMS Group Horizon/Meridian XML collector xml external entity reference

September 10, 2026 Yanac

A vulnerability identified as critical has been detected in OpenNMS Group Horizon and Meridian. Affected by this vulnerability is an unknown functionality of the component XML collector. The manipulation leads to xml external entity reference.

This vulnerability is referenced as CVE-2026-19596. Remote exploitation of the attack is possible. No exploit is available.VulDB Recent EntriesRead More