CVE-2026-121452

    Dashboard / Vulnerabilities / CVE-2026-121452

    CVE-2026-121452

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: bbs-go through 4.4.6 Improper TLS Certificate Validation in SMTP Email Service

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121452.json, https://nvd.nist.gov/vuln/detail/CVE-2026-121452, https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-improper-tls-certificate-validation-in-smtp-email-service, https://github.com/mlogclub/bbs-go/issues/310, https://github.com/mlogclub/bbs-go/commit/1a06e35fa6314ee2d3ada70685a7afa740baf6f5, https://github.com/mlogclub/bbs-go, https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/services/email_service.go#L86-L113

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -1a06e35fa6314ee2d3ada70685a7afa740baf6f5

    Affected versions

    v4.4.6
    v4.4.5
    v4.4.5-rc2
    v4.4.5-rc1
    v4.4.4
    v4.4.3
    v4.4.3-rc3
    v4.4.3-rc2
    v4.4.3-rc1
    v4.4.2
    v4.4.2-rc5
    v4.4.2-rc4
    v4.4.2-rc3
    v4.4.2-rc2
    v4.4.2-rc1
    v4.4.1-rc4
    v4.4.1
    v4.4.1-rc3
    v4.4.1-rc2
    v4.4.1-rc1
    v4.4.0-rc5
    v4.4.0
    v4.4.0-rc4

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-121452 | CVE-DB