CVE-2026-59786 Active agent heartbeat missing TLS check

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...

CVE-2026-59786

Zabbix Server and Proxy are vulnerable to a flaw where they accept active agent heartbeat messages without performing the required TLS check for configured PSK or certificate authentication. An attacker with access to the Zabbix trapper port can exploit this to report an arbitrary host as availab...

CVE-2026-59786 Active agent heartbeat missing TLS check

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...

GHSA-3F6P-5WW8-9RCR MySQL2: Auth Plugin Downgrade to mysql_clear_password Leaks Plaintext Credentials

Summary A rogue MySQL server or MITM can force mysql2 to send credentials in plaintext by requesting an auth switch to mysqlclearpassword. The driver complies without verifying that TLS is active. Details mysqlclearpassword is registered as a default standard plugin in lib/commands/authswitch.js...