Auth bypass in Yunohost-Apps Sogo Yhn

CVE-2026-74864

sogo_yhn configures SOGo with a parameter that forces the request with HTTP header "x-webobjects-remote-user" to be treated as sent by a verified user without performing password validation. Since Nginx does not strip this header, any client can supply it arbitrarily and gain access as any user, including a privileged user, without providing a password. This issue was fixed in version 5.8.0~ynh9.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

EPSS exploit prediction

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Affected products

Weakness classification (CWE)

References