CVE-2026-23919
UNSCOREDDescription
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 in Zabbix documentation .
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3.1 Vector
No CVSS vector data available.
Exploit Intelligence
Low risk: more likely to be exploited than 5% of all known CVEs.
References
Related Vulnerabilities
Other CWE-488 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-38367 | High | 8.2 | 11% | - | Fix |
| CVE-2024-6162 | High | 7.5 | 1.7% | - | Fix |
| CVE-2025-1247 | High | 8.3 | 0.8% | - | - |
| CVE-2024-27935 | High | 7.2 | 0.7% | - | Fix |
| CVE-2024-27455 | Critical | 9.1 | 0.6% | - | - |
| CVE-2024-5148 | High | 7.5 | 0.6% | - | Fix |
Common questions
How do I fix CVE-2026-23919?
Upgrade zabbix on debian 13 to 1:7.0.22+dfsg-1~deb13u1 or later.
Is CVE-2026-23919 being actively exploited?
Not that we know of. CVE-2026-23919 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.15% is the estimated probability that it will be exploited in the next 30 days. That is higher than 5% of all scored CVEs.
What does CVE-2026-23919 affect?
Published advisories record a fix for zabbix (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2026-23919
Markdown
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<a href="https://tridentstack.com/cve/CVE-2026-23919"><img src="https://tridentstack.com/cve/badge/CVE-2026-23919.svg" alt="CVE-2026-23919"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-25.