CVE-2026-23934Medium· 6.5▾ SunlitAn authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
0.2% → 0.6%
An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service.
zabbix >= 7.4.0, < 7.4.12Upgrade past the affected range:
zabbix 7.4.12Connected by shared product, vendor, weakness, or advisory.
CVE-2026-23930High· 7.5An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service.
CVE-2026-59788Medium· 5.6The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser
CVE-2026-59785Medium· 5.1Host search in Frontend allows filtering by fields that are not displayed, including stored IPMI and PSK credentials
CVE-2026-59786Medium· 6.9Zabbix Server and Proxy accept the active agent heartbeat message regardless of the configured PSK or certificate authentication
CVE-2026-59787Medium· 5.3The Perl SNMP trap receiver script shipped with Zabbix does not properly neutralize the ZBXTRAP record delimiter in trap content
CVE-2026-59782Medium· 6.9The JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said ad…