CVE-2026-41950

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/langgenius/dify/releases/tag/1.14.0	Release Notes
https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d	Exploit Third Party Advisory
https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuid	Third Party Advisory
https://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-apps
https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:langgenius:dify:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-05-05 21:16

Updated : 2026-07-24 21:10

NVD link : CVE-2026-41950

Mitre link : CVE-2026-41950

CVE.ORG link : CVE-2026-41950

JSON object : View

Products Affected

langgenius

dify

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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