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CVE-2026-13442— Langflow is affected by NET Misconfiguration: Use of Impersonation due to multiple unauthenticated and insufficiently authorized API endpoints

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1.10.1版本存在配置错误漏洞，该漏洞源于允许攻击者重用其他用户的FAISS命名空间，可导致跨用户信息泄露和有限完整性影响。

CVSS 7.1 · High EPSS 0.29% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
IBM Langflow OSS 1.0.0≤ 1.10.1 affected
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I. Basic Information for CVE-2026-13442

Vulnerability Information
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Vulnerability Title
Langflow is affected by NET Misconfiguration: Use of Impersonation due to multiple unauthenticated and insufficiently authorized API endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Langflow OSS 1.0.0 through 1.10.1 can allow an attacker to reuse another user's FAISS namespace to access owner-only vector content and influence later query results. This causes cross-user information disclosure and limited integrity impact through persistent poisoning of returned results.
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
.NET误配置：使用伪装
Source: CVE Program / CVE List V5
Vulnerability Title
IBM Langflow OSS 配置错误漏洞
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1.10.1版本存在配置错误漏洞，该漏洞源于允许攻击者重用其他用户的FAISS命名空间，可导致跨用户信息泄露和有限完整性影响。
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 ~ 1.10.1 cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-13442

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III. Intelligence Information for CVE-2026-13442

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Vendor Advisories for CVE-2026-13442 (1)

Same Patch Batch · IBM · 2026-07-28 · 31 CVEs total

CVE-2026-14446 9.8 CRITICAL IBM WebSphere Application Server is affected by a privilege escalation
CVE-2026-14512 9.8 CRITICAL IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of
CVE-2026-14973 9.3 CRITICAL Path Traversal in IBM Desktop App
CVE-2026-14958 9.1 CRITICAL OS command injection in IBM Aspera Faspex
CVE-2026-14959 9.1 CRITICAL OS Command Injection in IBM Aspera Faspex
CVE-2026-15064 8.7 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-15325 8.7 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-14996 8.2 HIGH Multiple vulnerabilities in IBM Aspera Faspex
CVE-2026-7769 8.1 HIGH SQL injection Security Vulnerability in IBM Sterling B2B Integrator and IBM Sterling File
CVE-2026-14974 8.1 HIGH IBM WebSphere Application Server is affected by cross-site scripting and deserialization v
CVE-2026-13463 7.5 HIGH Due to use of IBM Storage Protect, IBM Cloud Pak System is affected by vulnerability []
CVE-2026-14981 7.5 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-15057 7.5 HIGH IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability
CVE-2026-15280 7.5 HIGH IBM WebSphere Application Server Liberty is affected by a remote code execution and path-s
CVE-2026-15328 7.4 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty is inconsistent
CVE-2026-14528 7.4 HIGH IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of
CVE-2026-14893 7.3 HIGH IBM Instana Observability is affected by multiple Prototype Pollution within Instana Agent
CVE-2026-16192 7.1 HIGH IBM WebSphere Application Server Liberty is affected by a denial of service
CVE-2026-14976 7.1 HIGH IBM WebSphere Application Server Liberty is affected by a remote code execution and path-s
CVE-2026-16184 7.0 HIGH IBM WebSphere Application Server is affected by an authentication bypass

Showing top 20 of 31 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Langflow OSS
Same vendor: IBM
Same weakness: CWE-520

V. Comments for CVE-2026-13442

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