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CVE-2026-10700— Broken Access Control Vulnerabilities in Langflow 1.0.0 - 1.8.4 File Handling API Allowed Unauthorized Access to User Files

Quick assessment

Affected
IBM Langflow OSS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM Langflow OSS是美国IBM公司的一个开源的低代码可视化AI工作流构建工具，它让开发者能通过拖拽组件的方式快速搭建、部署和迭代AI智能体与RAG应用，同时支持用Python进行深度定制以集成企业系统。 IBM Langflow OSS 1.0.0版本至1.8.4版本存在授权问题漏洞，该漏洞源于文件处理API中存在访问控制漏洞，/api/v1/files/images/{flow_id}/{file_name}端点未强制认证或授权，/api/v1/files/download/{flow_i

CVSS 6.5 · Medium EPSS 0.54% · P43

Affected Version Matrix 1

VendorProduct Version RangeStatus
IBM Langflow OSS 1.0.0≤ 1.8.4 affected
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I. Basic Information for CVE-2026-10700

Vulnerability Information
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Vulnerability Title
Broken Access Control Vulnerabilities in Langflow 1.0.0 - 1.8.4 File Handling API Allowed Unauthorized Access to User Files
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Langflow OSS 1.0.0 through 1.8.4 contains multiple broken access control vulnerabilities in its file handling API that allow unauthorized access to user files.The /api/v1/files/images/{flow_id}/{file_name} endpoint does not enforce authentication or authorization checks, allowing unauthenticated remote attackers to retrieve image files associated with any flow by specifying a valid flow_id and file_name.Additionally, the /api/v1/files/download/{flow_id}/{file_name} endpoint requires authentication but fails to properly validate ownership of the requested resource. As a result, an authenticated user can access files belonging to other users by supplying arbitrary identifiers, leading to an authorization bypass (IDOR).Successful exploitation may result in unauthorized disclosure of sensitive data, including files stored in private flows. This issue breaks tenant isolation in multi-user deployments.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
IBM Langflow OSS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM Langflow OSS是美国IBM公司的一个开源的低代码可视化AI工作流构建工具，它让开发者能通过拖拽组件的方式快速搭建、部署和迭代AI智能体与RAG应用，同时支持用Python进行深度定制以集成企业系统。 IBM Langflow OSS 1.0.0版本至1.8.4版本存在授权问题漏洞，该漏洞源于文件处理API中存在访问控制漏洞，/api/v1/files/images/{flow_id}/{file_name}端点未强制认证或授权，/api/v1/files/download/{flow_i
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
IBM Langflow OSS 1.0.0 ~ 1.8.4 cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-10700

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III. Intelligence Information for CVE-2026-10700

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Vendor Advisories for CVE-2026-10700 (1)

Same Patch Batch · IBM · 2026-07-30 · 35 CVEs total

CVE-2026-12946 9.9 CRITICAL Remote Code Execution in CUGA Component CodeAgent
CVE-2026-13435 9.9 CRITICAL Python Interpreter Sandbox Bypass Leading to Sensitive Data Exposure
CVE-2026-15435 9.8 CRITICAL IBM App Connect Enterprise is vulnerable to arbitrary file write vulnerability
CVE-2026-12940 9.8 CRITICAL Langflow is affected by remote code execution due to multiple unauthenticated and insuffic
CVE-2026-12943 9.8 CRITICAL This Power Hardware Management Console update is being released to address
CVE-2026-12118 9.8 CRITICAL IBM webMethods Integration could allow an unauthenticated remote attacker to execute arbit
CVE-2026-11707 9.3 CRITICAL Multiple vulnerabilities have been identified in IBM WebSphere Application Server shipped
CVE-2026-14522 8.8 HIGH IBM App Connect Enterprise is vulnerable to an arbitrary file read and arbitrary changes t
CVE-2026-11536 8.5 HIGH IBM WebSphere Application Server is affected by a remote code execution vulnerability
CVE-2026-11885 8.4 HIGH Power System update in Buffer Copy
CVE-2026-10535 8.4 HIGH IBM® Db2® is vulnerable to buffer overflow in setgid helper db2flacc which can lead to pri
CVE-2026-14980 8.3 HIGH IBM WebSphere Application Server Liberty is affected by a cross-site request forgery
CVE-2026-12942 7.5 HIGH Langflow is affected by path traversal due to multiple unauthenticated and insufficiently
CVE-2026-14519 7.5 HIGH IBM App Connect Enterprise is vulnerable to an arbitrary file read and arbitrary changes t
CVE-2026-12733 7.5 HIGH IBM DataPower Gateway affected by denial of service
CVE-2026-10545 7.5 HIGH IBM Planning Analytics Local is affected by Open Redirect
CVE-2024-25039 7.5 HIGH IBM Engineering Requirements Management DOORS and DOORS Web Access is affected by multiple
CVE-2026-9322 7.5 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-16308 7.5 HIGH IBM Enterprise Build of Quarkus is affected by a DoS vulnerability
CVE-2026-10842 7.5 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Langflow OSS
Same vendor: IBM
Same weakness: CWE-639

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