Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, an authorization bypass vulnerability was found that allows an authenticated agent to read knowledge base answer content they should not be able to access. The vulnerable GraphQL mutation is meant to transform a knowledge base answer suggestion so it can be inserted into the ticket editor, but it only checks if the user has the ticket.agent permission. Checking the authorization to the knowledge base answer itself is missing. This vulnerability is fixed in 7.0.2.

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History

Fri, 25 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, an authorization bypass vulnerability was found that allows an authenticated agent to read knowledge base answer content they should not be able to access. The vulnerable GraphQL mutation is meant to transform a knowledge base answer suggestion so it can be inserted into the ticket editor, but it only checks if the user has the ticket.agent permission. Checking the authorization to the knowledge base answer itself is missing. This vulnerability is fixed in 7.0.2.
Title Zammad: Missing authorization in GraphQL mutation for suggesting knowledge base answers
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-25T17:07:02.910Z

Reserved: 2026-06-22T19:17:28.959Z

Link: CVE-2026-56730

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-25T18:17:27.063

Modified: 2026-09-25T18:17:27.063

Link: CVE-2026-56730

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-25T20:30:17Z

Weaknesses