---
id: CVE-2026-1199
title: >-
  Zabbix API and Frontend login lockout mechanism has a flaw where several
  unsuccessful login requests are not properly counted towards the block counter
  if sent simultaneously, potentially allowing for more password guesses than
  intended.
summary: >-
  Zabbix API and Frontend login lockout mechanism has a flaw where several
  unsuccessful login requests are not properly counted towards the block counter
  if sent simultaneously, potentially allowing for more password guesses than
  intended.
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-362
vendor: zabbix
product: zabbix
affected:
  - 'zabbix >= 6.0.0, < 6.0.47'
  - 'zabbix >= 7.0.0, < 7.0.28'
  - 'zabbix >= 7.4.0, < 7.4.12'
patched:
  - zabbix 7.4.12
published: '2026-08-18'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T15:25:05.650'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-1199'
references:
  - url: 'https://support.zabbix.com/browse/ZBX-28076'
    label: security@zabbix.com
tags:
  - nvd
epss: 0.00166
epssPercentile: 0.06298
ingestedAt: '2026-09-08T15:33:26.953Z'
---

## Overview

Zabbix API and Frontend login lockout mechanism has a flaw where several unsuccessful login requests are not properly counted towards the block counter if sent simultaneously, potentially allowing for more password guesses than intended.

## Affected

- `zabbix >= 6.0.0, < 6.0.47`
- `zabbix >= 7.0.0, < 7.0.28`
- `zabbix >= 7.4.0, < 7.4.12`

## Remediation

Upgrade past the affected range:

- `zabbix 7.4.12`