CVE-2026-34722: Zammad

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the used endpoint for ticket creation was missing authorization if the related parameter for adding links is used. This vulnerability is fixed in 7.0.1 and 6.5.4.

Affected products

• Zammad Zammad: before 6.5.4 (fixed in 6.5.4); version 7.0.0 only

Published 2026-04-08. Last modified 2026-07-24.