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CVE-2026-41950

Dify < 1.14.0 Authorization Bypass via File UUID

Published: May 5, 2026Updated: Jun 22, 2026 Sources: CVE List NVDCWE-639
6.5MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 75.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-639

Affected Products

difylanggenius
Mixed
AI / ML / llm-serving-inference
langgeniusoss-projectAI / MLaka dify, langgenius/dify

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-apps
zafran.io
https://github.com/langgenius/dify/releases/tag/1.14.0
github.com
https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d
huntr.com
and 1 more references View all →

Timeline

Published
May 5, 2026
Last Updated
Jun 22, 2026
News mentions
3

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