{"affected":[{"defaultStatus":"unaffected","ecosystem":"golang","packageName":"bbs-go","product":"bbs-go","source":"CNA: VulnCheck","vendor":"mlogclub","versions":[{"lessThanOrEqual":"4.4.6","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-121452","cwes":["CWE-295"],"description":"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 to capture SMTP PLAIN auth credentials and read or modify outgoing password-reset and verification emails.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.3,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":6.5,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},{"score":8.3,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":6.5,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"}],"modifiedAt":1793730495865,"publishedAt":1793719021813,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/mlogclub/bbs-go/issues/310"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/mlogclub/bbs-go"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/mlogclub/bbs-go/commit/1a06e35fa6314ee2d3ada70685a7afa740baf6f5"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/services/email_service.go#L86-L113"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-improper-tls-certificate-validation-in-smtp-email-service"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/mlogclub/bbs-go"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/services/email_service.go#L86-L113"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/mlogclub/bbs-go/commit/1a06e35fa6314ee2d3ada70685a7afa740baf6f5"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/mlogclub/bbs-go/issues/310"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-improper-tls-certificate-validation-in-smtp-email-service"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/mlogclub/bbs-go/commit/1a06e35fa6314ee2d3ada70685a7afa740baf6f5"}],"revision":"e6e31df1bf1891c20fbe1968f49decca1810e7fd46bfb4dab2b2ef99ac435ac1","sources":[{"modifiedAt":1793730495865,"name":"CNA: VulnCheck","retrievedAt":1793732999367,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121452"},{"modifiedAt":1793722644253,"name":"NVD","retrievedAt":1793730098479,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121452"}],"ssvc":{"assessedAt":1793726483781,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"bbs-go through 4.4.6 Improper TLS Certificate Validation in SMTP Email Service","updatedAt":1793732999367}