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    CVE-2026-118680

    SiYuan 3.8.7 through 3.8.8 fails to normalize Windows GLOBALROOT device-namespace aliases, bypassing the IsSensitivePath denylist. Attackers can invoke importStdMd with a GLOBALROOT-prefixed path to copy the API token and TLS private key into the publicly served assets directory.

    Published:Oct 28, 2026
    Last Modified:Nov 2, 2026
    EPS:Oct 28, 2026
    EPSS Score:0.00459
    CVSS Score:4.4

    Affected Products

    Vendor
    B3log
    Product
    Siyuan
    Vendor
    Siyuan
    Product
    Siyuan

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-116168 (CVSS 6.9) — SiYuan before 3.8.7 contains a path traversal vulnerability in the MCP asset tool because validateAssetUploadP…
    CVE-2026-116167 (CVSS 7.6) — SiYuan from 2.9.0 before 3.8.7 contains a cross-site scripting vulnerability in the unauthenticated /check-aut…
    CVE-2026-116166 (CVSS 7.6) — SiYuan 3.6.0 before 3.8.7 accepts and persists the networkServeTLS setting but never enforces it, so the kerne…
    CVE-2026-109310 (CVSS 7.1) — SiYuan v3.1.12 before v3.8.6 fails to restrict the Sprig template function map in the /api/icon/getDynamicIcon…
    CVE-2026-109309 (CVSS 6.9) — SiYuan v3.7.0 before v3.8.6 contains an absolute path traversal vulnerability in the kernel's private plugin H…
    CVE-2026-105205 (CVSS 6.9) — SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish-mode readers to learn…
    CVE-2026-104410 (CVSS 8.7) — SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish readers to read passw…

    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