{"id":"CVE-2026-121452","title":"bbs-go through 4.4.6 Improper TLS Certificate Validation in SMTP Email Service","summary":"bbs-go through 4.4.6 contains an improper certificate validation vulnerability that allows network-positioned attackers to intercept SMTP traffic because sendEmail() sets InsecureSkipVerify to true. Attackers can present any certificate …","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","cvssSource":"cna","cwe":["CWE-295"],"vendor":"mlogclub","product":"bbs-go","affected":["bbs-go <= 4.4.6"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-03T17:21:23.781193Z"},"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T18:28:15.865Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121452","references":[{"url":"https://github.com/mlogclub/bbs-go/issues/310","label":"GitHub Issue #310"},{"url":"https://github.com/mlogclub/bbs-go"},{"url":"https://github.com/mlogclub/bbs-go/commit/1a06e35fa6314ee2d3ada70685a7afa740baf6f5","label":"Fix commit"},{"url":"https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/services/email_service.go#L86-L113"},{"url":"https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-improper-tls-certificate-validation-in-smtp-email-service","label":"VulnCheck Advisory: bbs-go through 4.4.6 Improper TLS Certificate Validation in SMTP Email Service"}],"tags":["cve.org"],"epss":0.00235,"epssPercentile":0.14537,"ingestedAt":"2026-11-05T20:33:06.354Z","slug":"CVE-2026-121452","body":"## Overview\n\nbbs-go through 4.4.6 contains an improper certificate validation vulnerability that allows network-positioned attackers to intercept SMTP traffic because sendEmail() sets InsecureSkipVerify to true. Attackers can present any certificate to capture SMTP PLAIN auth credentials and read or modify outgoing password-reset and verification emails.\n\n## Affected\n\n- `bbs-go <= 4.4.6`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}