CVE-2026-59786
Active agent heartbeat missing TLS check
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-940 |
| Vendor | zabbix |
| Product | zabbix |
| Published | Oct 5, 2026 |
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Affected Versions
Zabbix / Zabbix
7.0.0 ≤ 7.0.28 7.4.0 ≤ 7.4.12
References
Credits
🔍 Zabbix wants to thank Aditya Bisht for submitting this report on the HackerOne bug bounty platform.