CVE-2026-23919Medium· 6.0▾ SunlitFor 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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 33 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 18.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
0.2% → 0.3%
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>.
zabbix >= 6.0.0, < 6.0.42zabbix >= 7.0.0, < 7.0.19zabbix >= 7.2.0, < 7.2.13zabbix >= 7.4.0, < 7.4.3Upgrade past the affected range:
zabbix 7.4.3Connected by shared product, vendor, weakness, or advisory.
CVE-2026-59788Medium· 5.6The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser
CVE-2026-59785Medium· 5.1Host search in Frontend allows filtering by fields that are not displayed, including stored IPMI and PSK credentials
CVE-2026-59786Medium· 6.9Zabbix Server and Proxy accept the active agent heartbeat message regardless of the configured PSK or certificate authentication
CVE-2026-59787Medium· 5.3The Perl SNMP trap receiver script shipped with Zabbix does not properly neutralize the ZBXTRAP record delimiter in trap content
CVE-2026-59782Medium· 6.9The 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 ad…
CVE-2026-59783Low· 2.3The Zabbix Server/Proxy has a vulnerability where binary items can crash the Server/Proxy on certain NULL byte input leading to potential loss of availability