Dify < 1.14.0 Authorization Bypass via File UUID_CVE-2026-41950

6 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Description

Dify before version 1.14.0 contains an authorization bypass vulnerability that allows authenticated users to read the full contents of files uploaded by other users within the same tenant by supplying an arbitrary file UUID in the files array of a chat-messages request. Attackers can exploit insufficient permission verification in the chat-messages endpoints to access files without ownership validation, bypassing workspace separation and signed URL protections to retrieve sensitive file contents through workflow processing.

Basic Information

ID CVE-2026-41950

Source VulnCheck

Published May 5, 2026 at 20:35

Affected Product

Vendor langgenius

Product dify

Affected Versions langgenius dify 0

CWE Classification

CWE-639

References

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    "description": "Dify before version 1.14.0 contains an authorization bypass vulnerability that allows authenticated users to read the full contents of files uploaded by other users within the same tenant by supplying an arbitrary file UUID in the files array of a chat-messages request. Attackers can exploit insufficient permission verification in the chat-messages endpoints to access files without ownership validation, bypassing workspace separation and signed URL protections to retrieve sensitive file contents through workflow processing.",
    "published": "2026-05-05T20:35:56.073Z",
    "modified": "2026-05-05T20:35:56.073Z",
    "type": "cve",
    "title": "Dify < 1.14.0 Authorization Bypass via File UUID",
    "source": "VulnCheck",
    "references": "https://github.com/langgenius/dify/releases/tag/1.14.0\nhttps://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d\nhttps://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuid",
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    "cvss": {
        "score": 6,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
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