Dify v1.14.1 Authorization Bypass via File Preview Endpoint_CVE-2026-41949

8.2 / 10

HIGH

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

Description

Dify version 1.14.1 and prior contain an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document across all tenants and workspaces using only the file's UUID. Attackers can access the /console/api/files/{file_id}/preview endpoint with an intercepted file UUID to extract sensitive content from documents without ownership or workspace permission verification. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.

Basic Information

ID CVE-2026-41949

Source VulnCheck

Published May 18, 2026 at 13:52

Modified May 18, 2026 at 14:07

Affected Product

Vendor langgenius

Product dify

Affected Versions langgenius dify 0

CWE Classification

CWE-639

References

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    "published": "2026-05-18T13:52:03.111Z",
    "modified": "2026-05-18T14:07:00.470Z",
    "type": "cve",
    "title": "Dify v1.14.1 Authorization Bypass via File Preview Endpoint",
    "source": "VulnCheck",
    "references": "https://huntr.com/bounties/d50a0240-7951-4939-b989-9bded66c7682\nhttps://github.com/langgenius/dify/pull/35797\nhttps://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-preview-endpoint",
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