Security Bulletin: Server-Side Request Forgery (SSRF) in Langflow URL Component

Summary IBM Langflow Desktop contains a Server-Side Request Forgery SSRF vulnerability in the URL data source component where user-supplied URLs are insufficiently validated before being used in backend HTTP requests, allowing authenticated attackers to force the Langflow server to make arbitrary...

Security Bulletin: Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw

Summary A stored cross-site scripting XSS vulnerability in Langflow allows attackers to inject and execute arbitrary HTML/JavaScript through the Playground event-streaming and Markdown rendering pipeline due to unsafe use of rehypeRaw without sanitization, potentially leading to session theft,...

Security Bulletin: Path Traversal and Arbitrary File Write Vulnerability in IBM Langflow Desktop API v2 File Upload Endpoint

Summary IBM Langflow Desktop contains a vulnerability in its API v2 file upload functionality where the POST /api/v2/files endpoint fails to validate and sanitize user-supplied filenames before passing them to the LocalStorageService, resulting in a path traversal condition that allows...

Security Bulletin: Authenticated Remote Code Execution Vulnerability in Langflow Code Validation Endpoint

Summary IBM Langflow Desktop contains a vulnerability in its code validation functionality where the /api/v1/validate/code endpoint uses Python's exec to process user-supplied input and fails to account for decorator execution during function definition parsing, allowing authenticated attackers t...

PT-2026-35816

Name of the Vulnerable Software and Affected Versions Langflow versions prior to 1.9.0 Description Langflow is a tool for building and deploying AI-powered agents and workflows. A path traversal flaw exists in the Knowledge Bases API endpoint "DELETE /api/v1/knowledge bases" within the delete...

Security Bulletin: Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id

Summary Langflow OSS is affected by an insecure direct object reference vulnerability in its Monitor API due to missing authorization checks. Although these endpoints require authentication, they fail to verify ownership of the provided flowid, allowing any authenticated user to access or...

Security Bulletin: Langflow OSS Authenticated Remote Code Execution (RCE) vulnerability exists in the validate_code function

Summary Langflow OSS contains a critical vulnerability in code validate endpoint due to unsafe use of Python's exec function within the validatecode routine. While the feature is intended to validate user-supplied function definitions, it fails to account for Python decorators, which are executed...

📄 Langflow 1.8.4 Traversal / Remote Code Execution

This Metasploit module targets a path traversal vulnerability in Langflow versions 1.8.4 and below that allows attackers to write arbitrary files on the system through the /api/v2/files endpoint...

📄 Langflow Remote Code Execution

The CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes the LangChains Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python and OS commands on the server via prompt injection, leading to full remote code execution. This module...

Exploit for Code Injection in Langflow

No d...

Anthropic MCP Design Vulnerability Enables RCE, Threatening AI Supply Chain

Cybersecurity researchers have discovered a critical "by design" weakness in the Model Context Protocol's MCP architecture that could pave the way for remote code execution and have a cascading effect on the artificial intelligence AI supply chain. "This flaw enables Arbitrary Command Execution R...

Langflow vulnerable to injection

A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function getclientip/installmcpconfig of the file src/backend/base/langflow/api/v1/mcpprojects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument...

EUVD-2026-23760

A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function createproject/encryptauthsettings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument authsetting...

GHSA-9JPJ-CPH8-W449 Langflow: Cleartext Storage of Authentication Settings in Project Creation Endpoint

A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function createproject/encryptauthsettings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument authsetting...

GHSA-V66P-F7X3-4794 Langflow vulnerable to injection

A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function getclientip/installmcpconfig of the file src/backend/base/langflow/api/v1/mcpprojects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument...

EUVD-2026-23764

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...

EUVD-2026-23762

A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function getclientip/installmcpconfig of the file src/backend/base/langflow/api/v1/mcpprojects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument...

Langflow: Cleartext Storage of Authentication Settings in Project Creation Endpoint

A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function createproject/encryptauthsettings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument authsetting...

CVE-2026-6600

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...

CVE-2026-6599

A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function getclientip/installmcpconfig of the file src/backend/base/langflow/api/v1/mcpprojects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument...