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    CVE-2026-66003

    Frappe is a full-stack web application framework written in Python and JavaScript. Prior to version 15.115.0, an access control bypass in the REST API allows a user to read data from Linked DocTypes that they are not authorized to access. When a document references another document through a Link field, the framework does not consistently enforce the linked DocType's own permissions when the record is retrieved through the REST API, so a low-privileged authenticated user can obtain fields from linked records outside their permitted scope. This issue is fixed in version 15.115.0.

    Published:Aug 26, 2026
    Last Modified:Aug 27, 2026
    EPS:Aug 26, 2026
    EPSS Score:0.00308
    CVSS Score:7.1

    Affected Products

    Vendor
    Frappe
    Product
    Frappe

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-63654 (CVSS 6.9) — Frappe is a full-stack web application framework. In version 16.31.0 and earlier, the whitelisted frappe.model…
    CVE-2026-53569 (CVSS 5.3) — Frappe is a full-stack web application framework. In version 16.31.0 and earlier, the whitelisted toggle_like …
    CVE-2026-66000 (CVSS 2.3) — Frappe is a full-stack web application framework. Prior to 16.23.0 and 15.112.0, Document Follow notification …
    CVE-2026-66058 (CVSS 5.3) — Frappe is a full-stack web application framework. Prior to 16.20.0 and 15.112.0, unrestricted access to a Docu…
    CVE-2026-66059 (CVSS 5.3) — Frappe is a full-stack web application framework. Prior to 16.20.0 and 15.112.0, a field-level permissions byp…

    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