CVE-2026-74864

UNKNOWN 0.0

Authentication Bypass in sogo_yhn

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	yunohost-apps
Product	sogo_yhn
Published	Sep 30, 2026
Last Updated	Sep 30, 2026

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Affected Versions

YunoHost-Apps / sogo_yhn

0 < 5.8.0~ynh9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Przemysław Knycz WeKrwi.IT https://github.com/djrzulf