CVE-2026-23935

Use-after-free read in script item/preprocessing HttpRequest body

State: Published
Severity: 6.8 Medium
Published: Aug 18, 2026
Updated: Aug 18, 2026
Reserved: Jan 19, 2026

Description

A Zabbix administrator is able to read out of bounds memory by utilizing a flaw in script item/preprocessing (JavaScript) HttpRequest logic, leading to potential confidentiality loss.

Scores

CVSS	Score	Vector	Source
4.0	6.8 Medium	CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	Zabbix

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
ZabbixZabbix	7.0.0 through 7.0.27Affectedfrom 7.0.28Not affected 7.4.0 through 7.4.11Affectedfrom 7.4.12Not affected

References

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

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.