CVE-2026-41950

MEDIUM EPSS 25.2%
Published May 5, 20261mo ago · Modified Jun 22, 20261w ago
6.0 CVSS 4.0
Medium
Find Similar
Published May 5, 2026 1mo ago
Last Modified Jun 22, 2026 1w ago

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.

CVSS Details

Base Score
6.0
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
25.2% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-639

Affected Products 1

VendorProductVersionRange
langgeniusdify* <1.14.0

References 4

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.