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CVE-2026-0768— Langflow code Code Injection Remote Code Execution Vulnerability

Quick assessment

Affected
Langflow Langflow
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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存在代码注入漏洞，该漏洞源于处理code参数时缺乏对用户提供字符串的验证，可能导致代码注入和远程代码执行。

AI Predicted 10.0 Difficulty: Easy EPSS 23.23% · P98
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I. Basic Information for CVE-2026-0768

Vulnerability Information
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Vulnerability Title
Langflow code Code Injection Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Langflow code Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the code parameter provided to the validate endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to execute Python code. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-27322.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Langflow 代码注入漏洞
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存在代码注入漏洞，该漏洞源于处理code参数时缺乏对用户提供字符串的验证，可能导致代码注入和远程代码执行。
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
Langflow Langflow 1.4.2 -

II. Public POCs for CVE-2026-0768

# POC Description Source Link Shenlong Link
1 Langflow <= 1.2.x exposes POST /api/v1/validate/code without any authentication. The endpoint calls validate_code() which exec()s user-supplied Python code. Default-argument expressions in Python execute at function-definition time, allowing arbitrary OS command execution without authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-0768.yaml POC Details
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III. Intelligence Information for CVE-2026-0768

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Same Patch Batch · Langflow · 2026-01-23 · 5 CVEs total

CVE-2026-0772 Langflow Disk Cache Deserialization of Untrusted Data Remote Code Execution Vulnerability
CVE-2026-0770 Langflow exec_globals Inclusion of Functionality from Untrusted Control Sphere Remote Code
CVE-2026-0769 Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability
CVE-2026-0771 Langflow PythonFunction Code Injection Remote Code Execution Vulnerability

IV. Related Vulnerabilities

Same product: Langflow
Same vendor: Langflow
Same weakness: CWE-94

V. Comments for CVE-2026-0768

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