CVE-2026-34721
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Apr 08, 2026
Vendor
unknown
Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the OAuth callback endpoints for Microsoft, Google, and Facebook external credentials do not validate a CSRF state parameter. This vulnerability is fixed in 7.0.1 and 6.5.4.