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.
History

Tue, 06 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-908
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'}

threat_severity

Moderate


Mon, 05 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 05 Oct 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Zabbix
Zabbix zabbix
Vendors & Products Zabbix
Zabbix zabbix

Mon, 05 Oct 2026 10:45:00 +0000

Type Values Removed Values Added
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.
Title JavaScript preprocessing memory disclosure
Weaknesses CWE-125
References
Metrics cvssV4_0

{'score': 6.9, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Zabbix

Published: 2026-10-05T10:27:34.672Z

Updated: 2026-10-05T11:53:36.626Z

Reserved: 2026-07-07T08:30:49.859Z

Link: CVE-2026-59782

cve-icon Vulnrichment

Updated: 2026-10-05T11:53:27.419Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-05T11:16:59.360

Modified: 2026-10-06T15:27:05.657

Link: CVE-2026-59782

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-05T10:27:34Z

Links: CVE-2026-59782 - Bugzilla