---
id: CVE-2026-56724
title: Zammad is a web based open source helpdesk/customer support system
summary: >-
  Zammad is a web based open source helpdesk/customer support system. Prior to
  7.0.2, summary An issue with permission checks in the knowledge base
  management area has been identified. Under certain conditions, data validation
  for linked i…
severity: high
cvss: 7.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-639
  - CWE-862
vendor: zammad
product: zammad
affected:
  - zammad < 7.0.2
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T18:17:26.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56724'
references:
  - url: >-
      https://github.com/zammad/zammad/commit/13ccc136e527adcab705ca8a3b2fb9ffc0cecddc
    label: security-advisories@github.com
  - url: 'https://github.com/zammad/zammad/releases/tag/7.0.2'
    label: security-advisories@github.com
  - url: 'https://github.com/zammad/zammad/security/advisories/GHSA-pv3q-74g5-w7fv'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-25T17:44:55.982397Z'
cvssSource: cna
ingestedAt: '2026-09-25T17:13:14.015Z'
---

## Overview

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, summary An issue with permission checks in the knowledge base management area has been identified. Under certain conditions, data validation for linked items was not fully enforced. This could have allowed users with limited read permissions to interact with items outside their assigned access scope. Data access has been strengthened in the current version through additional validation routines. This issue is fixed in version 7.0.2.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.