CVE-2026-23930High· 7.5▾ TwilightAn 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.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
0.2% → 0.4%
An 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.
zabbix >= 6.0.0, < 6.0.47zabbix >= 7.0.0, < 7.0.27zabbix >= 7.4.0, < 7.4.11Upgrade past the affected range:
zabbix 7.4.11Connected by shared product, vendor, weakness, or advisory.
CVE-2026-23924Medium· 4.9Zabbix Agent 2 Docker plugin does not properly sanitize the 'docker.container_info' parameters when forwarding them to the Docker daemon
CVE-2026-23919Medium· 6.0For performance reasons Zabbix Server/Proxy reuses JavaScript (Duktape) contexts (used in script items, JavaScript reprocessing, Webhooks)
CVE-2026-23928Medium· 6.8The Item history widget (in Zabbix 7.0+) or the Plain text widget (in Zabbix 6.0) can execute injected JavaScript when HTML display is enabled
CVE-2026-23927Medium· 6.5A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter
CVE-2026-23926Medium· 6.8An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget
CVE-2026-23923Medium· 5.3An unauthenticated attacker can exploit the Frontend 'validate' action to blindly instantiate arbitrary PHP classes