Is CVE-2026-23919 in the CISA KEV catalog?

No. CVE-2026-23919 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2026-23919?

CVE-2026-23919 has an EPSS score of 0.15% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-23919?

Upgrade zabbix on debian 13 to 1:7.0.22+dfsg-1~deb13u1 or later.

CVE & CISA-KEV Catalog

CVE-2026-23919

UNSCORED

NVD

Description

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 .

CWE-488

How to fix

Remediation Available

zabbixDebian

Fixed in:1:7.0.22+dfsg-1~deb13u1CVE-2026-23919

Fixed in:1:7.0.22+dfsg-1CVE-2026-23919

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

0.15%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Other references1

support.zabbix.com

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Markdown

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HTML

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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.