CVE-2023-29449: Limited control of resource utilization in JS preprocessing

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-13 · updated 2026-06-17
Weakness: CWE-400

Description

JavaScript preprocessing, webhooks and global scripts can cause uncontrolled CPU, memory, and disk I/O utilization. Preprocessing/webhook/global script configuration and testing are only available to Administrative roles (Admin and Superadmin). Administrative privileges should be typically granted to users who need to perform tasks that require more control over the system. The security risk is limited because not all users have this level of access.

Affected products

Zabbix: through 5.0.31; from 6.0.0 through 6.0.13; from 6.4.1 through 6.4.4; 6.4.0-alpha1, 6.4.0-beta1, 6.4.0-beta2, 6.4.0-beta3, 6.4.0-beta4, 6.4.0-beta5 (+4)

References

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