CVE-2026-33484— Langflow has Unauthenticated IDOR on Image Downloads
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I. Basic Information for CVE-2026-33484
Vulnerability Information
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Vulnerability Title
Langflow has Unauthenticated IDOR on Image Downloads
Source: NVD (National Vulnerability Database)
Vulnerability Description
Langflow is a tool for building and deploying AI-powered agents and workflows. In versions 1.0.0 through 1.8.1, the `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any unauthenticated request with a known flow_id and file_name returns the image with HTTP 200. In a multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs can be leaked through other API responses) can download any user's uploaded images without credentials. Version 1.9.0 contains a patch.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Langflow 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Langflow是Langflow开源的一个用于构建多代理和 RAG 应用程序的可视化框架。 Langflow 1.0.0版本至1.8.1版本存在安全漏洞，该漏洞源于/api/v1/files/images/{flow_id}/{file_name}端点缺少身份验证或所有权检查，可能导致未经授权下载用户图像。
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 |
|---|---|---|---|---|
| langflow-ai | langflow | >= 1.0.0, < 1.9.0 | - |
II. Public POCs for CVE-2026-33484
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|---|
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Same Patch Batch · langflow-ai · 2026-03-24 · 4 CVEs total
| CVE-2026-33309 | 10.0 CRITICAL | Langflow has an Arbitrary File Write (RCE) via v2 API |
| CVE-2026-33475 | 9.1 CRITICAL | Langflow GitHub Actions Shell Injection |
| CVE-2026-33497 | Langflow: /profile_pictures/{folder_name}/{file_name} endpoint file reading |
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V. Comments for CVE-2026-33484
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