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    CVE-2026-33669

    SiYuan is a personal knowledge management system. Prior to version 3.6.2, document IDs were retrieved via the /api/file/readDir interface, and then the /api/block/getChildBlocks interface was used to view the content of all documents. Version 3.6.2 patches the issue.

    Published:Mar 26, 2026
    Last Modified:Mar 30, 2026
    EPS:Mar 26, 2026
    EPSS Score:0.00043
    CVSS Score:9.8

    Affected Products

    Vendor
    B3log
    Product
    Siyuan
    Vendor
    Siyuan
    Product
    Siyuan

    Exploits

    https://github.com/siyuan-note/siyuan/security/advisories/GHSA-34xj-66v3-6j83

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2026-87812 (CVSS 7.4) — SiYuan before v3.8.2 contains a stored cross-site scripting vulnerability in Bazaar package cards where the ic…
    CVE-2026-87811 (CVSS 8.4) — SiYuan before v3.8.2 inserts persisted notebook template paths into HTML input value attributes without proper…
    CVE-2026-87810 (CVSS 6.9) — Siyuan before v3.8.2 contains an information disclosure vulnerability in the POST /api/search/fullTextSearchBl…
    CVE-2026-87809 (CVSS 7.1) — Siyuan before v3.8.2 fails to apply publish-access filtering to embedded blocks before rendering in the /api/e…
    CVE-2026-87808 (CVSS 8.7) — SiYuan versions <= 3.8.1 contain an incomplete fix for CVE-2026-32767 (GHSA-j7wh-x834-p3r7). The prior fix (co…
    CVE-2026-87807 (CVSS 8.7) — siyuan versions before v3.8.2 contain an authenticated SQL injection vulnerability in the fullTextSearchBlock …
    CVE-2026-86712 (CVSS 8.6) — SiYuan before 3.8.2 trusts the attacker-writable text/siyuan clipboard MIME type and skips sanitization in the…

    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