CVE-2026-59782

JavaScript preprocessing memory disclosure

State: Published
Severity: 6.9 Medium
Published: Oct 5, 2026
Updated: Oct 5, 2026
Reserved: Jul 7, 2026

Description

The JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	Zabbix

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
ZabbixZabbix	6.0.0 through 6.0.47Affectedfrom 6.0.48Not affected 7.0.0 through 7.0.28Affectedfrom 7.0.29Not affected 7.4.0 through 7.4.12Affectedfrom 7.4.13Not affected

References

https://support.zabbix.com/browse/ZBX-28193

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