CVE-2026-74864

CVSS 9.3 (critical) · published 2026-09-30

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.

Weakness: CWE-639

Source: NVD CVE-2026-74864

References

• https://cert.pl/en/posts/2026/09/CVE-2026-74864
• https://forum.yunohost.org/t/sogo-critical-vulnerability-fixed-in-5-8-0-ynh9/42699

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