Out-of-Bounds Memory Read Vulnerability in Zabbix by Zabbix SIA
CVE-2026-23935

6.8MEDIUM

Key Information:

Vendor

Zabbix

Status
Zabbix
Vendor
CVE Published:
18 August 2026

What is CVE-2026-23935?

A flaw exists in the Zabbix scripting logic, specifically within the script item preprocessing for JavaScript HttpRequest. This vulnerability allows an administrator to read memory outside of the intended bounds, which could potentially result in unauthorized access to sensitive information.

Affected Version(s)

Zabbix 7.0.0 <= 7.0.27

Zabbix 7.4.0 <= 7.4.11

References

https://support.zabbix.com/browse/ZBX-28073

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zabbix wants to thank Aikido Security for submitting this report on the HackerOne bug bounty platform.
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