Zabbix 6.0.x < 6.0.41 / 7.0.x < 7.0.19 / 7.2.x < 7.2.13 / 7.4.x < 7.4.3 Information Disclosure (ZBX-27638)

The version of Zabbix Server installed on the remote host is prior to 6.0.41, 7.0.19, 7.2.13, 7.4.3. It is, therefore, affected by an information disclosure vulnerability : - Zabbix Server/Proxy reuses JavaScript Duktape contexts for performance reasons. This can lead to confidentiality loss wher...

CVE-2026-23919

A flaw was found in Zabbix Server and Proxy. This vulnerability arises from the system's reuse of JavaScript Duktape contexts, which are execution environments for JavaScript code. A regular Zabbix administrator, even without superuser privileges, can exploit this to access and leak sensitive dat...

UBUNTU-CVE-2026-23919

For performance reasons Zabbix Server/Proxy reuses JavaScript Duktape contexts used in script items, JavaScript reprocessing, Webhooks. This can lead to confidentiality loss where a regular non-super Zabbix administrator leaks data for hosts they do not have access to. A fix has been released tha...