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    CVE-2026-54562

    Cloudreve is a self-hosted file management and sharing system. Prior to 4.16.1, Cloudreve's remote download workflow accepts user-supplied URLs at POST /api/v4/workflow/download and passes them to the configured downloader without blocking loopback, localhost, IPv6 localhost, or redirect-to-loopback targets, allowing a non-admin user with remote download permission to fetch internal-only URLs and read the response after it is imported into the user's own files. This issue is fixed in version 4.16.1.

    Published:Jul 15, 2026
    Last Modified:Jul 15, 2026
    EPS:Jul 15, 2026
    EPSS Score:
    CVSS Score:6.5

    Affected Products

    Vendor
    Cloudreve
    Product
    Cloudreve

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

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    CVE-2026-55502 (CVSS 7.1) — Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, POST /api/v4/admin/policy/oaut…
    CVE-2026-55499 (CVSS 4.3) — Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, a single-file share event-stre…
    CVE-2026-55497 (CVSS 6.5) — Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, the built-in thumbnail and ava…
    CVE-2026-55496 (CVSS 4.3) — Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, GET /api/v4/user/search calls …
    CVE-2026-55495 (CVSS 4.3) — Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, the WOPI PUT_RELATIVE handler …
    CVE-2026-54560 (CVSS 7.6) — Cloudreve is a self-hosted file management and sharing system. From 4.12.0 until 4.16.1, Cloudreve's OAuth acc…
    CVE-2026-54563 (CVSS 7.1) — Cloudreve is a self-hosted file management and sharing system. Prior to 4.16.1, a Cloudreve WebDAV account roo…
    CVE-2026-25726 (CVSS 8.1) — Cloudreve is a self-hosted file management and sharing system. Prior to version 4.13.0, the application uses t…
    CVE-2022-32167 (CVSS 5.4) — Cloudreve versions v1.0.0 through v3.5.3 are vulnerable to Stored Cross-Site Scripting (XSS), via the file upl…

    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