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CVE-2026-9225— Langflow is vulnerable to unauthorized file system access due to path traversal and missing storage path validation

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.

以下是该漏洞描述信息的中文翻译： IBM Langflow OSS 1.0.0 至 1.11.5 版本中的 Langflow 可能允许经过身份验证的攻击者访问其他用户的敏感文件，原因是“文件/读取文件”组件中存在访问控制不当的问题。当通过 端点执行工作流（flows）时，应用程序允许组件的输入引用使用任意用户或工作流标识符的存储路径，而不会验证其所有权关系。拥有低权限身份验证访问权限的攻击者可以提供一个精心构造的文件路径，指向其他用户的存储命名空间，从而导致后端读取并返回其他用户上传文件的内容。此漏洞绕过了文件管理

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1213 · Data from Information Repositories
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I. Basic Information for CVE-2026-9225

Vulnerability Information
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Vulnerability Title
Langflow is vulnerable to unauthorized file system access due to path traversal and missing storage path validation
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an authenticated attacker to access sensitive files belonging to other users due to improper access control in the File/Read File component. When executing flows through the /api/v1/run/advanced/{flow_id} endpoint, the application allows component inputs to reference storage paths using arbitrary user or flow identifiers without verifying ownership. An attacker with low‑privileged authenticated access can supply a crafted file path pointing to another user’s storage namespace, causing the backend to read and return the contents of files uploaded by other users. This vulnerability bypasses intended authorization checks enforced by the file management API and may result in unauthorized disclosure of sensitive user data.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM Langflow OSS 1.0.0 ~ 1.11.5 cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9225

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III. Intelligence Information for CVE-2026-9225

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Other References for CVE-2026-9225 (1)

Same Patch Batch · IBM · 2026-09-10 · 49 CVEs total

CVE-2026-81204 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-79724 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-85025 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-78573 9.8 CRITICAL IBM ContextForge MCP Gateway is affected by use of default credentials
CVE-2026-82107 9.6 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82100 9.6 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-80424 9.1 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-19646 9.1 CRITICAL Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a
CVE-2026-79742 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-78569 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-82095 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82092 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81211 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-81941 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-78575 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-81940 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-81554 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81551 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81550 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-75777 8.8 HIGH Multiple vulnerabilities in IBM Aspera Enterprise Webapps

Showing top 20 of 49 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-9225

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