NuytsTech Security

CVE-2026-34720

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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.

More information : https://github.com/zammad/zammad/security/advisories/GHSA-hcv6-w4h9-p2p7

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