CVE-2026-23938
Medium
Description
An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service.
SeverityMedium
CVSS4.9
Exploit probability—
Product
Zabbix
PublishedAug 18, 2026
First seenAug 18, 2026
Weakness typeCWE-248CWE-248
How to fix
Update
- zabbix zabbix6.0.47, 7.0.27, 7.4.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zabbix zabbix | 6.0.0 ≤ v < 6.0.47, 7.0.0 ≤ v < 7.0.27, 7.4.0 ≤ v < 7.4.11 | 6.0.47, 7.0.27, 7.4.11 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.