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CVE-2026-59782

JavaScript preprocessing memory disclosure

MEDIUM
6.9
CVSS Score
Published: October 5, 2026 at 10:27 AM UTC
Updated: October 6, 2026 at 03:27 PM UTC
1 product affected across 1 vendorZabbix

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zabbix· Zabbix
60%
6.0.0 ≤ v ≤ 6.0.477.0.0 ≤ v ≤ 7.0.287.4.0 ≤ v ≤ 7.4.126.0.07.0.07.4.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMZabbix
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-125

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