---
id: CVE-2026-23922
title: >-
  The email media OAuth field 'Client secret' cannot be read after saving, but a
  Super Admin can leak it by setting a malicious 'Token endpoint'
summary: >-
  The email media OAuth field 'Client secret' cannot be read after saving, but a
  Super Admin can leak it by setting a malicious 'Token endpoint'. Changes were
  made to reset the client secret upon changing the token endpoint.
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-522
vendor: zabbix
product: zabbix
affected:
  - 'zabbix >= 7.4.0, < 7.4.9'
patched:
  - zabbix 7.4.9
published: '2026-08-18'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T15:18:34.610'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-23922'
references:
  - url: 'https://support.zabbix.com/browse/ZBX-28067'
    label: security@zabbix.com
tags:
  - nvd
epss: 0.00275
epssPercentile: 0.2009
ingestedAt: '2026-09-08T15:33:26.953Z'
---

## Overview

The email media OAuth field 'Client secret' cannot be read after saving, but a Super Admin can leak it by setting a malicious 'Token endpoint'. Changes were made to reset the client secret upon changing the token endpoint.

## Affected

- `zabbix >= 7.4.0, < 7.4.9`

## Remediation

Upgrade past the affected range:

- `zabbix 7.4.9`