CVE-2026-41950

MEDIUM 6.5

Dify < 1.14.0 Authorization Bypass via File UUID

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	langgenius
Product	dify
Published	May 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

langgenius / dify

0 < 1.14.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/langgenius/dify/releases/tag/1.14.0 huntr.com: https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d vulncheck.com: https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuid

Credits

Ido Shani and Gal Zaban of Zafran Security