CVE-2026-41950

EUVD-2026-27504
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 7%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
langgeniusdify
𝑥
< 1.14.0
CNA
Common Weakness Enumeration
References
https://github.com/langgenius/dify/releases/tag/1.14.0
https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d
https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuid
https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d