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CVE-2026-41949

Dify < 1.14.2 Authorization Bypass via File Preview Endpoint

Published: May 18, 2026Updated: Jun 22, 2026 Sources: CVE List NVDCWE-639
5.9MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 65.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Dify before version 1.14.2 contains an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document across all tenants and workspaces using only the file's UUID. Attackers can access the /console/api/files/{file_id}/preview endpoint with an intercepted file UUID to extract sensitive content from documents without ownership or workspace permission verification. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
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

dify
commercial
difySaaS
AI / ML / llm-serving-inference
langgenius
oss-projectaka langgenius/dify, dify
difyMixed
AI / ML / llm-serving-inference

Exploitability

Official Patch Available
Workaround Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://github.com/langgenius/dify/commit/432a6412a3fdb30ce48003d699b90cc7d890df20
github.com
https://github.com/langgenius/dify/pull/35797
github.com
https://github.com/langgenius/dify/releases/tag/1.14.2
github.com
and 3 more references View all →
News mentions
3

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