CVE-2026-59782
Description
A flaw was found in Zabbix. An authenticated user with limited administrative privileges can read raw server memory by leveraging the JavaScript preprocessing engine. This flaw leads to information disclosure, exposing sensitive data from other concurrently running preprocessor tasks that should not be accessible to that user.
Statement
Red Hat does not ship Zabbix in any supported product. The community Fedora and EPEL packages are affected by this flaw and community trackers have been filed.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory; Read Application Data
When reusing a resource such as memory or a program variable, the original contents may not have been cleared before it is sent to an untrusted party.
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Instability
The uninitialized resource may contain values that cause program flow to change in ways that the programmer did not intend, possibly leading to a crash.
Other
Technical Impact: Unexpected State; Varies by Context
The consequences vary depending on the type of resource and how it is used within the product.
Frequently Asked Questions
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