Is CVE-2026-23919 actively exploited?

No active exploitation of CVE-2026-23919 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-23919 be exploited remotely?

Partially. CVE-2026-23919 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-23919?

CVE-2026-23919 has a CVSS score of 7.1 (HIGH).

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HIGH

CVE-2026-23919

CWE-488Published: March 24, 2026· Updated: Mar 25, 2026

7.1

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.3th

Official 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 <a href='https://www.zabbix.com/documentation/7.4/en/manual/installation/known_issues#preprocessing-global-variables-are-unsafe'>in Zabbix documentation</a>.

NVD Source

Technical Analysis

CVE-2026-23919 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges Req.High

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:A/AC:L/AT:P/PR:H/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X