CVE-2026-56723

The Zammad helpdesk and customer support system contains an authorization bypass in versions prior to 7.0.2 . While internal ticket articles are correctly hidden from customers via the article listing API, the attachment download endpoint fails to enforce article-level authorization. This allows ...

EUVD-2026-87205

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 attachme...

PT-2026-98938

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.2 Description An authorization bypass exists where a customer with access to a ticket can download attachments from internal ticket articles. While the article listing API correctly hides internal articles, the...

SUSE CVE-2017-16854

In Open Ticket Request System OTRS through 3.3.20, 4 through 4.0.26, 5 through 5.0.24, and 6 through 6.0.1, an attacker who is logged in as a customer can use the ticket search form to disclose internal article information of their customer tickets...