CVE-2026-41950CWE-639

Dify < 1.14.0 Authorization Bypass via File UUID

Medium · published May 5, 2026

CVSS v4.0
6.0
EPSS
0%
Percentile
40.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.0 · MEDIUM
Vector
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
EPSS
0.00473 · 40.0th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-05-05T20:35Z
EPSS history
Timeline
  • 05 MAY 20:35Z
    Dify < 1.14.0 Authorization Bypass via File UUID
    cvelistv5