CVE-2026-85583

    Dashboard / Vulnerabilities / CVE-2026-85583

    CVE-2026-85583

    Published: 4 Sept 2026Last Modified: 16 Sept 2026

    Summary: SiYuan before v3.8.2 Path Traversal via symlink in file API

    Details: SiYuan versions before v3.8.2 contain a path traversal vulnerability in the reader-accessible file-read endpoint that follows symlinks when opening authorized asset paths. Attackers with reader role can request a logical asset under data/assets/ that is a symlink to a file outside the workspace and receive the target file bytes, bypassing workspace boundary restrictions.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85583.json, https://github.com/siyuan-note/siyuan/security/advisories/GHSA-g7gf-v79m-jwrm, https://nvd.nist.gov/vuln/detail/CVE-2026-85583, https://www.vulncheck.com/advisories/siyuan-before-3.8.2-path-traversal-via-symlink-in-file-api

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -44a6c212a994c7ba8129fc38b001a9ab58957c6f

    Affected versions

    v3.8.2-beta.4
    v3.8.2-beta.3
    v3.8.2-beta.2
    v3.8.2-beta.1
    v3.8.2-alpha.6
    v3.8.2-alpha.5
    v3.8.2-alpha.4
    v3.8.2-alpha.3
    v3.8.2-alpha.1
    v3.8.1
    v3.8.1-beta.6
    v3.8.1-beta.5
    v3.8.1-beta.4
    v3.8.1-beta.1
    v3.8.0
    v3.8.0-beta.2
    v3.8.0-alpha.4
    v3.8.0-alpha.3
    v3.8.0-alpha.2

    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-2026-85583 | CVE-DB