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CVE-2026-48520— Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read

CVSS 6.1 · Medium EPSS 0.41% · P34

Affected Version Matrix 1

VendorProductVersion RangeStatus
langflow-ailangflow< 1.10.0affected
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I. Basic Information for CVE-2026-48520

Vulnerability Information
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Vulnerability Title
Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read
Source: CVE Program / CVE List V5
Vulnerability Description
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" (or "Public Flows" in code) contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of the flow is allowed. The execution request can contain a list of files that gets read by Langflow and fed into the LLM. The files path can be any path supported by the storage - it can be either a local file or S3 path if supported by the local configuration This vulnerability is fixed in 1.10.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Langflow 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Langflow是Langflow团队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 1.10.0之前版本存在输入验证错误漏洞，该漏洞源于可共享游乐场包含潜在任意文件读取问题，可能导致攻击者通过公开执行流程读取任意文件。
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

VendorProductAffected VersionsCPESubscribe
langflow-ailangflow < 1.10.0 -

II. Public POCs for CVE-2026-48520

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III. Intelligence Information for CVE-2026-48520

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Vendor Advisories for CVE-2026-48520 (1)

Same Patch Batch · langflow-ai · 2026-06-23 · 9 CVEs total

CVE-2026-485199.6 CRITICALLangflow: Unauthenticated RCE in Shareable Playgrounds
CVE-2026-554479.6 CRITICALLangflow: BaseFileComponent-based nodes arbitrary file read with RCE exploit
CVE-2026-554509.3 CRITICALLangflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak
CVE-2026-337608.8 HIGHLangflow: IDOR/BOLA in Monitor API — Missing Ownership Enforcement on 7 Endpoints
CVE-2026-552558.4 HIGHLangflow: IDOR Vulnerability in `/api/v1/responses` Endpoint Allows Authenticated Attacker
CVE-2026-554467.5 HIGHLangflow: Unauthenticated DoS through multipart form boundary file upload
CVE-2026-428676.5 MEDIUMLangflow: Path Traversal in Knowledge Bases API via Creation Endpoint
CVE-2026-554236.1 MEDIUMLangflow: Logout button does not clear session

IV. Related Vulnerabilities

Same product: langflow
Same vendor: langflow-ai
Same weakness: CWE-73

V. Comments for CVE-2026-48520

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