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CVE-2026-56726 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/zammad/zammad/commit/c767f32c006ff9842152f78e12f355f7f485304f	[email protected]
https://github.com/zammad/zammad/commit/e50ef69beab897317caa5e9490edba33aa1ac978	[email protected]
https://github.com/zammad/zammad/releases/tag/7.0.2	[email protected]
https://github.com/zammad/zammad/security/advisories/GHSA-96hh-fmj3-h4hp	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-862	Missing Authorization	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 25, 2026	CVE Modified	CISA-ADP
Sep 25, 2026	New CVE Received	[email protected]