Security Advisory

CVE-2026-34721

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-04-08 18:12:32

Last updated 2026-04-09 14:22:33

Assigner GitHub_M

State PUBLISHED

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.

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