CVE-2026-41949— Dify v1.14.1 Authorization Bypass via File Preview Endpoint
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| langgenius | dify | ≤ 1.14.1 | affected |
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I. Basic Information for CVE-2026-41949
Vulnerability Information
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Vulnerability Title
Dify v1.14.1 Authorization Bypass via File Preview Endpoint
Source: NVD (National Vulnerability Database)
Vulnerability Description
Dify version 1.14.1 and prior contain 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
dify 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
dify是LangGenius开源的一个 LLM 应用程序开发平台。 dify 1.14.1及之前版本存在安全漏洞，该漏洞源于文件预览端点中的授权绕过问题，可能导致任何认证用户使用文件UUID读取跨所有租户和工作空间的任何上传文档的前3000个字符。攻击者可以访问/console/api/files/{file_id}/preview端点，使用拦截的文件UUID提取文档中的敏感内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| langgenius | dify | 0 ~ 1.14.1 | - |
II. Public POCs for CVE-2026-41949
| # | POC Description | Source Link | Shenlong Link |
|---|
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Advisory · 2Patch · 1
Same Patch Batch · langgenius · 2026-05-18 · 3 CVEs total
| CVE-2026-41948 | 7.7 HIGH | Dify v1.14.1 Path Traversal via Plugin Daemon Internal API Access |
| CVE-2026-41947 | 7.4 HIGH | Dify v1.14.1 Authorization Bypass via Trace Configuration Endpoints |
IV. Related Vulnerabilities
Same product: dify
- CVE-2026-41948
Dify v1.14.1 Path Traversal via Plugin Daemon Internal API A - CVE-2026-41947
Dify v1.14.1 Authorization Bypass via Trace Configuration En - CVE-2026-41950
Dify < 1.14.0 Authorization Bypass via File UUID - CVE-2026-42138
Dify Vulnerable to Stored XSS via SVG-file upload - CVE-2026-34082
Dify has IDOR in deleting someone else's chat conversation
Same vendor: langgenius
- CVE-2026-41948
Dify v1.14.1 Path Traversal via Plugin Daemon Internal API A - CVE-2026-41947
Dify v1.14.1 Authorization Bypass via Trace Configuration En - CVE-2026-41950
Dify < 1.14.0 Authorization Bypass via File UUID - CVE-2026-42138
Dify Vulnerable to Stored XSS via SVG-file upload - CVE-2026-34082
Dify has IDOR in deleting someone else's chat conversation
Same weakness: CWE-639
- CVE-2026-35430
Azure Privileged Identity Management (PIM) Elevation of Priv - CVE-2026-39967
TypeBot: Cross-Typebot Result Data Access via Missing typebo - CVE-2026-28444
Typebot: IDOR in Result Logs Endpoint Allows Cross-Workspace - CVE-2026-9248
Devolutions Server越权漏洞影响2025及2026版本 - CVE-2026-8347
Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-a
V. Comments for CVE-2026-41949
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