CVE-2026-41950 Details
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.
An authorization bypass vulnerability exists in Dify versions prior to 1.14.0, allowing authenticated users to access files uploaded by others within the same tenant. This is achieved by inserting a file UUID into the files array of a chat-messages request, exploiting inadequate permission checks on the chat-messages endpoint. The vulnerability bypasses workspace separation and signed URL protections, enabling unauthorized access to sensitive file contents through workflow processing.
Users can update to Dify version 1.14.0 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d | CISA-ADP | ExploitThird Party Advisory |
| https://github.com/langgenius/dify/releases/tag/1.14.0 | [email protected] | Release Notes |
| https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d | [email protected] | ExploitThird Party Advisory |
| https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuid | [email protected] | 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 | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| langgenius dify | < 1.14.0 |
CPE
Remediation
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Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 22, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 12, 2026 | Initial Analysis | [email protected] |
| May 6, 2026 | CVE Modified | CISA-ADP |
| May 5, 2026 | New CVE Received | [email protected] |