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    CVE-2026-42505

    Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.

    Published:Jul 8, 2026
    Last Modified:Jul 9, 2026
    EPS:Jul 8, 2026
    EPSS Score:0.00419
    CVSS Score:5.3

    Affected Products

    Vendor
    Go Standard Library
    Product
    Crypto Tls

    Exploits

    No exploit reference

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    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