{"id":"CVE-2026-74865","title":"sogo_yhn configures SOGo with a parameter \"SOGoTrustProxyAuthentication=YES\". This causes the password to be bypassed during HTTP Basic authentication","summary":"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 arb…","severity":"critical","cvss":9.2,"cvssVector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","cwe":["CWE-639"],"vendor":"YunoHost-Apps","product":"sogo_yhn","affected":["sogo_yhn < 5.8.0~ynh9"],"published":"2026-09-30","updated":"2026-09-30","sourceUpdated":"2026-09-30T13:17:20.083","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74865","references":[{"url":"https://cert.pl/en/posts/2026/09/CVE-2026-74864","label":"cvd@cert.pl"},{"url":"https://forum.yunohost.org/t/sogo-critical-vulnerability-fixed-in-5-8-0-ynh9/42699","label":"cvd@cert.pl"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-30T12:50:17.073137Z"},"cvssSource":"cna","ingestedAt":"2026-09-30T13:03:51.965Z","slug":"CVE-2026-74865","body":"## Overview\n\nsogo_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.\n\n\nThis issue was fixed in version 5.8.0~ynh9.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":50.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}