CVE-2026-23937 PUBLISHED

Host PSK extraction in Zabbix API

Assigner: Zabbix
Reserved: 19.01.2026 Published: 18.08.2026 Updated: 18.08.2026

The Zabbix API host.get action can be exploited by authenticated users to extract a host's PSK key leading to potential loss of data integrity.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS Score: 6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Zabbix
Product	Zabbix
Versions	Default: unknown affected from 6.0.0 to 6.0.46 (incl.) affected from 7.0.0 to 7.0.27 (incl.) affected from 7.4.0 to 7.4.11 (incl.)

Affected Configurations

An authenticated user with access to host.get API action sending crafted HTTP requests to Zabbix API. An attacker would also need access to Zabbix trapper port.

Solutions

Update the affected components to their respective fixed versions.

References

https://support.zabbix.com/browse/ZBX-28074

Problem Types

CWE-203: Observable Discrepancy CWE

Impacts

CAPEC-122: Privilege Abuse