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CVE-2026-7869— 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版本存在路径遍历漏洞，该漏洞源于Knowledge Bases API（POST /api/v1/knowledge_bases）存在路径遍历，用户提供的知识库名称直接用于创建文件路径，未进行适当的清理或包含检查，可能导致经过身份验证的攻击者在服务器文件系统上任意创建目录和写入文件。

CVSS 5.4 · Medium EPSS 0.22% · P12

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-2026-7869

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 is vulnerable to Path Traversal in the Knowledge Bases API (`POST /api/v1/knowledge_bases`). This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker can exploit this flaw to create directories and write files anywhere on the server's filesystem.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
IBM Langflow OSS 路径遍历漏洞
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版本存在路径遍历漏洞，该漏洞源于Knowledge Bases API（POST /api/v1/knowledge_bases）存在路径遍历，用户提供的知识库名称直接用于创建文件路径，未进行适当的清理或包含检查，可能导致经过身份验证的攻击者在服务器文件系统上任意创建目录和写入文件。
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-2026-7869

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III. Intelligence Information for CVE-2026-7869

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Vendor Advisories for CVE-2026-7869 (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
Same weakness: CWE-22

V. Comments for CVE-2026-7869

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