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Critical 9.9CVE-2026-105697 Public exploit
Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration
Langflow is a tool for building and deploying AI-powered agents and workflows. Before Langflow 1.10.3, the MCP stdio transport launched whatever command / args a user put in an MCP server configuration, with no allowlist and (before 1.10.3) wrapped in bash -c…
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Critical 9.8
Langflow: Title Authenticated Remote Code Execution in validate_code via Malicious Decorators Description
langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code (remote). The component is: src/backend/base/langflow/api/v1/validate.py:validate-post_validate_code-a-real-authenticated-http-post-to-api-v1. The attack vector …
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Critical 9.8
Authentication Bypass in Webhook Endpoints Allowed Unauthorized Flow Execution
IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of any flow. The system incorrectly bypasses API key validation when the WEBHOOK_AUTH_ENABLE configurati…
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Critical 9.9
Code Injection Vulnerability in Code Validation Endpoint
IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated attackers to execute arbitrary OS commands and read sensitive files including credentials, enabling complete system compromise and lateral movement.
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Critical 9.6CVE-2026-48519 Public exploit
Langflow: Unauthenticated RCE in Shareable Playgrounds
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" (or "Public Flows" in code) contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workfl…
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Critical 9.6
Langflow: BaseFileComponent-based nodes arbitrary file read with RCE exploit
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, by controlling a files that are digested into the RAG, an attacker can direct the node to read any file on the file-system by absolute path. All components based on…
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Critical 9.3
Langflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, unauthenticated users can upload any amount of data to the server without any limitations. No need for any prior knowledge, only network access to Langflow. This ca…
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Critical 10.0
Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection
IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined with an authentication bypass that allows an unauthenticated attacker to execute arbitrary code on the host system, resulting in complete compr…
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Critical 9.6CVE-2026-42048 Public exploit
Langflow: Path Traversal in Langflow Knowledge Bases API
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow is vulnerable to Path Traversal in the Knowledge Bases API (DELETE /api/v1/knowledge_bases). This occurs because user-supplied knowledge base names are con…
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Critical 9.3
Langflow has Authenticated Code Execution in Agentic Assistant Validation
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.9.0, the Agentic Assistant feature in Langflow executes LLM-generated Python code during its validation phase. Although this phase appears intended to validate g…
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Critical 10.0CVE-2026-33309 EPSS 14%
Langflow has an Arbitrary File Write (RCE) via v2 API
Langflow is a tool for building and deploying AI-powered agents and workflows. Versions 1.2.0 through 1.8.1 have a bypass of the patch for CVE-2025-68478 (External Control of File Name), leading to the root architectural issue within `LocalStorageService` rem…
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Critical 9.3
Langflow has Unauthenticated Remote Code Execution via Public Flow Build Endpoint
Langflow is a tool for building and deploying AI-powered agents and workflows. In versions prior to 1.9.0, the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint allows building public flows without requiring authentication. When the optional data paramete…
KEV Mar 25, 2026 -
Critical 9.8
Langflow has Remote Code Execution in CSV Agent
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes `allow_dangerous_code=True`, which automatically exposes LangChain’s Python REPL tool (`python_repl_ast`). As a res…
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Critical 9.8
Langflow exec_globals Inclusion of Functionality from Untrusted Control Sphere Remote Code Execution Vulnerability
Langflow exec_globals Inclusion of Functionality from Untrusted Control Sphere Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is not required to e…
KEV Jul 21, 2026 -
Critical 9.4
Langflow <= 1.6.9 CORS Misconfiguration to Token Hijack & RCE
Langflow versions up to and including 1.6.9 contain a chained vulnerability that enables account takeover and remote code execution. An overly permissive CORS configuration (allow_origins='*' with allow_credentials=True) combined with a refresh token cookie c…
KEV May 21, 2026 -
Critical 9.8
Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code
Langflow versions prior to 1.3.0 are susceptible to code injection in the /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.
KEV May 5, 2025 -
Critical 9.8CVE-2024-48061 Public exploit
Langflow vulnerable to remote code execution
langflow <=1.0.18 is vulnerable to Remote Code Execution (RCE) as any component provided the code functionality and the components run on the local machine rather than in a sandbox.
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Critical 9.8
langflow has vulnerability in PythonCodeTool component
langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.