CVE-2026-23930
Fixed in a distro release EPSS <1%CVSS 5.3
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.
Products: Zabbix
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | zabbix | no fix |
| Debian 13 | zabbix | no fix |
| Debian 14 | zabbix | 1:7.0.27+dfsg-1 |
| Ubuntu 26.04 LTS | zabbix | no fix |
| Ubuntu 26.10 | zabbix | no fix |
| Ubuntu Pro 14.04 LTS | zabbix | no fix |
| Ubuntu Pro 16.04 LTS | zabbix | no fix |
| Ubuntu Pro 18.04 LTS | zabbix | no fix |
| Ubuntu Pro 20.04 LTS | zabbix | no fix |
| Ubuntu Pro 22.04 LTS | zabbix | no fix |