High 7.1Published Sep 25, 2026

CVE-2026-56723Zammad: Missing authorization on ticket attachment download

Updated under an hour ago (2026-10-19 05:50 UTC)

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Every CVE for zammad

Exploited in the last 30 days

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, a customer who can view a ticket cannot see internal ticket articles through the article listing API. However, the same customer can directly request an attachment belonging to an internal article via the attachment download endpoint, bypassing article-level authorization. This results in an inconsistency: The article listing hides internal articles from customers. The attachment download only checks the parent ticket, not the article, so the same customer can download the attachment directly. This issue is fixed in version 7.0.2.

CVSS: 7.1 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Sep 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

zammad zammad zammad:zammad (from the name)	before 7.0.2	CNA record

References

https://github.com/zammad/zammad/security/advisories/GHSA-374g-4f73-g7m7x-refsource-confirm
https://github.com/zammad/zammad/commit/e661d00efb3d2c4ef4af3a36ce79d7c724323f97x-refsource-misc
https://github.com/zammad/zammad/releases/tag/7.0.2x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.