Vulnerability Details CVE-2026-23919
For performance reasons Zabbix Server/Proxy reuses JavaScript (Duktape) contexts (used in script items, JavaScript reprocessing, Webhooks). This can lead to confidentiality loss where a regular (non-super) Zabbix administrator leaks data for hosts they do not have access to. A fix has been released that makes the built in Zabbix JavaScript objects read-only, but please be advised that usage of global JavaScript variables is not recommended because their content could be leaked. More information <a href='https://www.zabbix.com/documentation/7.4/en/manual/installation/known_issues#preprocessing-global-variables-are-unsafe'>in Zabbix documentation</a>.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 15.9%
CVSS Severity
CVSS v3 Score 6.0
References
Products affected by CVE-2026-23919
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cpe:2.3:a:zabbix:zabbix:6.0.0
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cpe:2.3:a:zabbix:zabbix:6.0.1
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cpe:2.3:a:zabbix:zabbix:6.0.10
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cpe:2.3:a:zabbix:zabbix:6.0.11
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cpe:2.3:a:zabbix:zabbix:6.0.12
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cpe:2.3:a:zabbix:zabbix:6.0.13
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cpe:2.3:a:zabbix:zabbix:6.0.14
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cpe:2.3:a:zabbix:zabbix:6.0.15
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cpe:2.3:a:zabbix:zabbix:6.0.16
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cpe:2.3:a:zabbix:zabbix:6.0.17
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cpe:2.3:a:zabbix:zabbix:6.0.18
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cpe:2.3:a:zabbix:zabbix:6.0.19
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cpe:2.3:a:zabbix:zabbix:6.0.2
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cpe:2.3:a:zabbix:zabbix:6.0.20
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cpe:2.3:a:zabbix:zabbix:6.0.21
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cpe:2.3:a:zabbix:zabbix:6.0.22
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cpe:2.3:a:zabbix:zabbix:6.0.23
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cpe:2.3:a:zabbix:zabbix:6.0.24
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cpe:2.3:a:zabbix:zabbix:6.0.25
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cpe:2.3:a:zabbix:zabbix:6.0.26
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cpe:2.3:a:zabbix:zabbix:6.0.27
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cpe:2.3:a:zabbix:zabbix:6.0.28
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cpe:2.3:a:zabbix:zabbix:6.0.29
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cpe:2.3:a:zabbix:zabbix:6.0.3
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cpe:2.3:a:zabbix:zabbix:6.0.30
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cpe:2.3:a:zabbix:zabbix:6.0.31
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cpe:2.3:a:zabbix:zabbix:6.0.32
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cpe:2.3:a:zabbix:zabbix:6.0.33
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cpe:2.3:a:zabbix:zabbix:6.0.34
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cpe:2.3:a:zabbix:zabbix:6.0.35
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cpe:2.3:a:zabbix:zabbix:6.0.36
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cpe:2.3:a:zabbix:zabbix:6.0.37
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cpe:2.3:a:zabbix:zabbix:6.0.38
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cpe:2.3:a:zabbix:zabbix:6.0.39
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cpe:2.3:a:zabbix:zabbix:6.0.4
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cpe:2.3:a:zabbix:zabbix:6.0.40
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cpe:2.3:a:zabbix:zabbix:6.0.41
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cpe:2.3:a:zabbix:zabbix:6.0.5
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cpe:2.3:a:zabbix:zabbix:6.0.6
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cpe:2.3:a:zabbix:zabbix:6.0.7
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cpe:2.3:a:zabbix:zabbix:6.0.8
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cpe:2.3:a:zabbix:zabbix:6.0.9
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cpe:2.3:a:zabbix:zabbix:7.0.0
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cpe:2.3:a:zabbix:zabbix:7.0.1
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cpe:2.3:a:zabbix:zabbix:7.0.10
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cpe:2.3:a:zabbix:zabbix:7.0.11
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cpe:2.3:a:zabbix:zabbix:7.0.12
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cpe:2.3:a:zabbix:zabbix:7.0.13
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cpe:2.3:a:zabbix:zabbix:7.0.14
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cpe:2.3:a:zabbix:zabbix:7.0.15
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cpe:2.3:a:zabbix:zabbix:7.0.16
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cpe:2.3:a:zabbix:zabbix:7.0.17
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cpe:2.3:a:zabbix:zabbix:7.0.18
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cpe:2.3:a:zabbix:zabbix:7.0.2
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cpe:2.3:a:zabbix:zabbix:7.0.3
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cpe:2.3:a:zabbix:zabbix:7.0.4
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cpe:2.3:a:zabbix:zabbix:7.0.5
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cpe:2.3:a:zabbix:zabbix:7.0.6
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cpe:2.3:a:zabbix:zabbix:7.0.7
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cpe:2.3:a:zabbix:zabbix:7.0.8
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cpe:2.3:a:zabbix:zabbix:7.0.9
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cpe:2.3:a:zabbix:zabbix:7.2.0
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cpe:2.3:a:zabbix:zabbix:7.2.1
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cpe:2.3:a:zabbix:zabbix:7.2.10
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cpe:2.3:a:zabbix:zabbix:7.2.11
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cpe:2.3:a:zabbix:zabbix:7.2.12
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cpe:2.3:a:zabbix:zabbix:7.2.2
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cpe:2.3:a:zabbix:zabbix:7.2.3
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cpe:2.3:a:zabbix:zabbix:7.2.4
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cpe:2.3:a:zabbix:zabbix:7.2.5
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cpe:2.3:a:zabbix:zabbix:7.2.6
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cpe:2.3:a:zabbix:zabbix:7.2.7
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cpe:2.3:a:zabbix:zabbix:7.2.8
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cpe:2.3:a:zabbix:zabbix:7.2.9
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cpe:2.3:a:zabbix:zabbix:7.4.0
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cpe:2.3:a:zabbix:zabbix:7.4.1
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cpe:2.3:a:zabbix:zabbix:7.4.2