CVE-2026-34721

MediumCVSS 6.5/10Last modified Jul 24, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-352

Affected software

No affected versions have been published.

Timeline

Published: Apr 8, 2026
Last modified: Jul 24, 2026
NVD status: Analyzed

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