CRITICAL 9.3 NVD
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 p
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.
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
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-09-30 via NVD.
Risk Timeline
CVE Disclosed2026-09-30 · -1 days ago
Remediation Resources
Official Advisory
cert.pl/en/posts/2026/09/CVE-2026-74864
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