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    CVE-2026-72790

    SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/notebook/getNotebookInfo endpoint that returns notebook metadata without authorization checks. Attackers can read notebook names, document counts, sizes, and timestamps for closed or non-published notebooks that should be hidden from readers.

    Published:Aug 12, 2026
    Last Modified:Aug 14, 2026
    EPS:Aug 12, 2026
    EPSS Score:0.00237
    CVSS Score:5.8

    Affected Products

    Vendor
    B3log
    Product
    Siyuan
    Vendor
    Siyuan
    Product
    Siyuan

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

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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