---
id: CVE-2026-56726
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, this vulnerability breaks normal ticket isolation boundaries between
  agents. Any authenticated agent, even one with no active tickets assigned to
  them, c…
severity: medium
cvss: 5.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-862
vendor: zammad
product: zammad
affected:
  - zammad < 7.0.2
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T20:17:08.780'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56726'
references:
  - url: >-
      https://github.com/zammad/zammad/commit/c767f32c006ff9842152f78e12f355f7f485304f
    label: security-advisories@github.com
  - url: >-
      https://github.com/zammad/zammad/commit/e50ef69beab897317caa5e9490edba33aa1ac978
    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-96hh-fmj3-h4hp'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-25T19:43:58.380438Z'
cvssSource: cna
ingestedAt: '2026-09-25T18:14:20.466Z'
---

## Overview

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, this vulnerability breaks normal ticket isolation boundaries between agents. Any authenticated agent, even one with no active tickets assigned to them, can view the titles, status, labels, and URL links of GitHub/GitLab issues attached to any ticket in the system. This allows an internal user to systematically view GitHub/GitLab issue data linked by other agents or administrators across the organization by simply querying random or sequential ticket IDs. This vulnerability is fixed in 7.0.2.

## Remediation

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