# CVE-2026-23937: Zabbix API PSK key extraction in host.get

Source: https://junglewise.ai/threats/cve-2026-23937-zabbix-api-psk-key-extraction-in-host-get  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-18. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-23937 · Severity: medium · CVSS 6.5 · Published 2026-08-18

Zabbix is a widely-deployed infrastructure monitoring platform. An authenticated user can exploit the API's host.get action to extract pre-shared key (PSK) credentials, compromising encrypted communications between Zabbix agents and the server. This undermines data integrity and confidentiality of monitoring data and enables unauthorized access to monitored systems.

Technologies: [Zabbix](https://junglewise.ai/threats/technologies/zabbix). Vendors: [Zabbix](https://junglewise.ai/threats/vendors/zabbix).

## Quick answers

**Is CVE-2026-23937 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-23937 being exploited in the wild.

**How severe is CVE-2026-23937?** Medium severity, with a CVSS score of 6.5, published 18 August 2026.

**Which products and versions are affected?** Zabbix 6.0.0–6.0.46, 7.0.0–7.0.27, 7.4.0–7.4.11.

**Is there a fix for CVE-2026-23937?** A patch was published on 2026-08-18: Fixes released: 6.0.47, 7.0.28, 7.4.12 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-23937 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-23937?** Check whether you run Zabbix at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an information disclosure flaw in the Zabbix API host.get action that improperly exposes sensitive PSK keys to authenticated users. An attacker must be authenticated to the Zabbix API and have access to the host.get action, and additionally requires network access to the Zabbix trapper port (typically 10051) to abuse the extracted credentials. By sending crafted HTTP requests, an attacker can retrieve PSK values that should be protected, enabling them to intercept or spoof agent communications. The issue affects Zabbix 6.0.0–6.0.46, 7.0.0–7.0.27, and 7.4.0–7.4.11, with fixes available in 6.0.47, 7.0.28, and 7.4.12 respectively.

## Affected products

- Zabbix Zabbix 6.0.0–6.0.46, 7.0.0–7.0.27, 7.4.0–7.4.11

## Timeline

- 2026-08-18: disclosed: CVE-2026-23937 published
- 2026-08-18: patched: Fixes released: 6.0.47, 7.0.28, 7.4.12

## References

- [https://support.zabbix.com/browse/ZBX-28074](https://support.zabbix.com/browse/ZBX-28074)

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