CVE-2026-74865
sogo_yhn configures SOGo with a parameter "SOGoTrustProxyAuthentication=YES". This causes the…
- Risk score
- 66/100
- CVSS
- 9.2 v4.0
- Exploit chance (30 days)
- 0.4%
- Published
- 30 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- sogo_yhn configures SOGo with a parameter "SOGoTrustProxyAuthentication=YES". This causes the password to be bypassed during HTTP Basic authentication. An unauthenticated attacker who provides the username of an existing user and any arbitrary password can successfully log in to that user's account. This issue was fix…
- Affected
- See advisory
- Fix
- Upgrade the product to 5.8.0 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.2 critical
- Remotely exploitable without logging in
References
Original description
sogo_yhn configures SOGo with a parameter "SOGoTrustProxyAuthentication=YES". This causes the password to be bypassed during HTTP Basic authentication. An unauthenticated attacker who provides the username of an existing user and any arbitrary password can successfully log in to that user's account. This issue was fixed in version 5.8.0~ynh9.
Last activity 30 Sep 2026. Patch Forecast updates every hour.