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CVE-2026-6600— langflow-ai langflow Frontend React Component Rendering edit-message.tsx cross site scripting

CVSS 3.5 · Low EPSS 0.03% · P8
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I. Basic Information for CVE-2026-6600

Vulnerability Information
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Vulnerability Title
langflow-ai langflow Frontend React Component Rendering edit-message.tsx cross site scripting
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in langflow-ai langflow up to 1.8.3. This affects an unknown function of the file src/frontend/src/modals/IOModal/components/chatView/chatMessage/components/edit-message.tsx of the component Frontend React Component Rendering. Executing a manipulation can lead to cross site scripting. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Langflow 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Langflow是Langflow开源的一个用于构建多代理和 RAG 应用程序的可视化框架。 Langflow 1.8.3及之前版本存在安全漏洞，该漏洞源于对文件src/frontend/src/modals/IOModal/components/chatView/chatMessage/components/edit-message.tsx的错误操作，可能导致跨站脚本攻击。
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

VendorProductAffected VersionsCPESubscribe
langflow-ailangflow 1.8.0 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6600

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III. Intelligence Information for CVE-2026-6600

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Same Patch Batch · langflow-ai · 2026-04-20 · 5 CVEs total

CVE-2026-65967.3 HIGHlangflow-ai langflow API Endpoint endpoints.py create_upload_file unrestricted upload
CVE-2026-65996.3 MEDIUMlangflow-ai langflow Model Context Protocol Configuration API mcp_projects.py install_mcp_
CVE-2026-65984.3 MEDIUMlangflow-ai langflow Project Creation Endpoint projects.py encrypt_auth_settings cleartext
CVE-2026-65972.7 LOWlangflow-ai langflow Flow Using API core.py has_api_terms credentials storage

IV. Related Vulnerabilities

Same product: langflow
Same vendor: langflow-ai
Same weakness: CWE-79

V. Comments for CVE-2026-6600

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