SB2026032515 - Security restrictions bypass in Zabbix

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Main Vulnerability Database SB2026032515

SB2026032515 - Security restrictions bypass in Zabbix

Published: March 25, 2026

Security Bulletin ID SB2026032515
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2026-23919)

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to insufficient isolation of JavaScript (Duktape) execution context in Zabbix Server/Proxy when reusing JavaScript contexts for script items, JavaScript reprocessing, and Webhooks. A remote privileged user can overwrite built-in JavaScript functions or read global JavaScript variables to disclose sensitive information.

Exploitation requires a regular (non-super) Zabbix administrator account. The impact includes confidentiality loss where data from hosts the user does not have access to may be leaked.


Remediation

Install update from vendor's website.

References