CVE-2026-23938lowCWE-248

CVE-2026-23938: low-severity vulnerability in Zabbix

Server DoS via JavaScript preprocessing or script items

Published

Follow this CVE+ Monitor Zabbix+ Monitor zabbix

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 2.1epss 0.5%
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.
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
Affected products
Zabbix · Zabbix
Related CVEs — Zabbix

In the same product, most dangerous first.

CVE-2024-42327CRITICALSQL injection in user.get APIEPSS 79.1%CVE-2024-22120CRITICALTime Based SQL Injection in Zabbix Server Audit LogEPSS 76.6%CVE-2013-3628—CVE-2013-3628EPSS 67.5%CVE-2023-29452MEDIUMRemove possibility to add html into Geomap attribution fieldEPSS 64.1%CVE-2024-36465HIGHSQL injection in Zabbix APIEPSS 39.9%CVE-2026-23921HIGHBlind, read-only SQL injection in Zabbix API via sortfield parameterEPSS 4.1%