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CVE-2026-34720

Zammad

Description

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the SSO mechanism in Zammad was not verifying the header originates from a trusted SSO proxy/gateway before applying further actions on it. This vulnerability is fixed in 7.0.1 and 6.5.4.

CVSS 4.3EPSS 0.1%Risk 0.43
View source
Published
2026-04-08 19:25:22
Affected versions
<7.0.1, <6.5.4
Type
Core software
Last modified
2026-07-24 22:10:00
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N