CVE-2026-59786
Medium
Description
Zabbix Server and Proxy accept the active agent heartbeat message regardless of the configured PSK or certificate authentication. This means someone with access to the Zabbix trapper port can report an arbitrary host using an active agent as available, resulting in a loss of integrity.
SeverityMedium
CVSS6.9
Exploit probability—
Product
Zabbix
PublishedOct 5, 2026
First seenOct 5, 2026
Weakness typeCWE-940CWE-940
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Zabbix Zabbix | 7.0.0 ≤ v ≤ 7.0.28, 7.4.0 ≤ v ≤ 7.4.12 | — |
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