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CVE-2026-9130— Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement

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公司的一款可视化构建AI工作流的低代码工具平台。 IBM Langflow OSS 1.0.0版本至1.10.3版本存在安全漏洞，该漏洞源于MemoryComponent组件中的授权绕过，其retrieve_messages和store_message方法仅通过session_id过滤而未验证flow_id或user_id所有权，可能导致已认证用户通过session_id碰撞访问其他用户的聊天记录，造成跨用户信息泄露。

CVSS 7.1 · High EPSS 0.18% · P7

Affected Version Matrix 1

VendorProduct Version RangeStatus
IBM Langflow OSS 1.0.0≤ 1.10.3 affected
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I. Basic Information for CVE-2026-9130

Vulnerability Information
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Vulnerability Title
Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Langflow OSS 1.0.0 through 1.10.3 contain an authorization bypass vulnerability in the MemoryComponent that allows authenticated users to access chat history of other users via session_id collision. The MemoryComponent.retrieve_messages and store_message methods filter on session_id without validating flow_id or user_id ownership, enabling cross-user information disclosure through multiple authenticated API endpoints including /api/v1/run/*, /api/v1/responses, and /api/v2/workflow/*. This vulnerability only affects multi-user deployments with LANGFLOW_AUTO_LOGIN=False.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
IBM Langflow OSS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM Langflow OSS是美国IBM公司的一款可视化构建AI工作流的低代码工具平台。 IBM Langflow OSS 1.0.0版本至1.10.3版本存在安全漏洞，该漏洞源于MemoryComponent组件中的授权绕过，其retrieve_messages和store_message方法仅通过session_id过滤而未验证flow_id或user_id所有权，可能导致已认证用户通过session_id碰撞访问其他用户的聊天记录，造成跨用户信息泄露。
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 ~ 1.10.3 cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9130

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III. Intelligence Information for CVE-2026-9130

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Vendor Advisories for CVE-2026-9130 (1)

Same Patch Batch · IBM · 2026-08-05 · 32 CVEs total

CVE-2026-8478 8.8 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-9201 8.8 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-17623 8.8 HIGH Langflow is affected OS Command Injection in Model Context Protocol features
CVE-2026-17626 8.8 HIGH Langflow is affected by security vulnerabilities in Model Context Protocol features
CVE-2026-17632 8.8 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-8182 8.8 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-17624 8.5 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-9077 8.5 HIGH Reliance on Untrusted Inputs in a Security Decision vulnerabilities in Model Context Proto
CVE-2026-17617 8.5 HIGH Server-Side Request Forgery (SSRF) in IBM Application Gateway Operator
CVE-2026-17633 8.5 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-10025 8.2 HIGH IBM QRadar SIEM has an XML External Entity (XXE) injection vulnerability
CVE-2026-9196 8.1 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-8400 8.1 HIGH Multiple Vulnerabilities in IBM® Java SDK affect IBM WebSphere Application Server and WebS
CVE-2026-8183 7.7 HIGH Langflow OSS is affected by arbitrary code execution in custom component validation and tr
CVE-2026-8446 7.5 HIGH Langflow is affected by security vulnerabilities in Model Context Protocol features
CVE-2026-9205 7.4 HIGH Langflow is affected by weaknesses in secret handling and sensitive configuration access
CVE-2026-8470 7.4 HIGH Langflow is affected by weaknesses in secret handling and sensitive configuration access
CVE-2026-17630 7.2 HIGH Langflow is affected by security vulnerabilities in Model Context Protocol features
CVE-2026-17625 7.2 HIGH Langflow is affected by OS Command Injection in Model Context Protocol features
CVE-2026-9081 7.1 HIGH Langflow OSS is affected by server-side request forgery in provider validation and API req

Showing top 20 of 32 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Langflow OSS
Same vendor: IBM

V. Comments for CVE-2026-9130

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