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CVE-2026-12942— Langflow is affected by path traversal 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版本存在路径遍历漏洞，该漏洞源于路径遍历问题，可能导致远程攻击者通过发送包含".."序列的特制URL请求查看系统上的任意文件。

CVSS 7.5 · High EPSS 0.62% · P48

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-2026-12942

Vulnerability Information
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Vulnerability Title
Langflow is affected by path traversal 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 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot " sequences ( /.. /) to view arbitrary files on the system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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版本存在路径遍历漏洞，该漏洞源于路径遍历问题，可能导致远程攻击者通过发送包含".."序列的特制URL请求查看系统上的任意文件。
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

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-2026-12942

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III. Intelligence Information for CVE-2026-12942

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Vendor Advisories for CVE-2026-12942 (1)

Same Patch Batch · IBM · 2026-07-30 · 35 CVEs total

CVE-2026-12946 9.9 CRITICAL Remote Code Execution in CUGA Component CodeAgent
CVE-2026-13435 9.9 CRITICAL Python Interpreter Sandbox Bypass Leading to Sensitive Data Exposure
CVE-2026-15435 9.8 CRITICAL IBM App Connect Enterprise is vulnerable to arbitrary file write vulnerability
CVE-2026-12943 9.8 CRITICAL This Power Hardware Management Console update is being released to address
CVE-2026-12118 9.8 CRITICAL IBM webMethods Integration could allow an unauthenticated remote attacker to execute arbit
CVE-2026-12940 9.8 CRITICAL Langflow is affected by remote code execution due to multiple unauthenticated and insuffic
CVE-2026-11707 9.3 CRITICAL Multiple vulnerabilities have been identified in IBM WebSphere Application Server shipped
CVE-2026-14522 8.8 HIGH IBM App Connect Enterprise is vulnerable to an arbitrary file read and arbitrary changes t
CVE-2026-11536 8.5 HIGH IBM WebSphere Application Server is affected by a remote code execution vulnerability
CVE-2026-10535 8.4 HIGH IBM® Db2® is vulnerable to buffer overflow in setgid helper db2flacc which can lead to pri
CVE-2026-11885 8.4 HIGH Power System update in Buffer Copy
CVE-2026-14980 8.3 HIGH IBM WebSphere Application Server Liberty is affected by a cross-site request forgery
CVE-2026-14519 7.5 HIGH IBM App Connect Enterprise is vulnerable to an arbitrary file read and arbitrary changes t
CVE-2024-25039 7.5 HIGH IBM Engineering Requirements Management DOORS and DOORS Web Access is affected by multiple
CVE-2026-10545 7.5 HIGH IBM Planning Analytics Local is affected by Open Redirect
CVE-2026-12733 7.5 HIGH IBM DataPower Gateway affected by denial of service
CVE-2026-9322 7.5 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-16308 7.5 HIGH IBM Enterprise Build of Quarkus is affected by a DoS vulnerability
CVE-2026-10842 7.5 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-11897 7.5 HIGH IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Langflow OSS
Same vendor: IBM
Same weakness: CWE-22

V. Comments for CVE-2026-12942

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