CVE-2026-23938

Server DoS via JavaScript preprocessing or script items

State: Published
Severity: 2.1 Low
Published: Aug 18, 2026
Updated: Aug 18, 2026
Reserved: Jan 19, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	2.1 Low	CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	Zabbix

Weaknesses

CWE-248 Uncaught Exception

Affected Products

Product	Versions
ZabbixZabbix	6.0.0 through 6.0.46Affectedfrom 6.0.47Not affected 7.0.0 through 7.0.26Affectedfrom 7.0.27Not affected 7.4.0 through 7.4.10Affectedfrom 7.4.11Not affected

References

https://support.zabbix.com/browse/ZBX-28075

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