Langflow OSS <=1.12.2 - Unauthenticated RCE via Import Code Execution

Langflow OSS 1.0.0 through 1.12.2 is vulnerable to unauthenticated remote code execution via the POST /api/v1/validate/code endpoint, which calls importlib.importmodule on user-supplied import statements, executing module top-level code instead of merely validating syntax. Combined with the defau...

Duplicate Advisory: Title Authenticated Remote Code Execution in validate_code via Malicious Decorators Description

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-w584-2h2r-2hvf. This link is maintained to preserve external references. Original Description langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code remote. The compone...

CVE-2026-51886

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-postvalidatecode-a-real-authenticated-http-post-to-api-v1. The attack vector is: Attack surface: HTTP or browser-backed...

PT-2026-104043

Name of the Vulnerable Software and Affected Versions langflow-ai langflow versions prior to 1.9.4 Description An authenticated attacker can execute arbitrary Python code on the server via a code injection flaw. The issue exists because a public-facing route accepts raw Python source and forwards...

CVE-2026-51886

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-postvalidatecode-a-real-authenticated-http-post-to-api-v1. The attack vector is: Attack surface: HTTP or browser-backed...

CVE-2026-51886

The langflow-ai langflow application (up to v1.9.3 ) is vulnerable to Authenticated Remote Code Execution (RCE) via a code injection flaw in the validate_code function. The /api/v1/validate/code endpoint uses Python's exec() function to compile and execute user-supplied code for validation. While...

Langflow AI - Unauthenticated Remote Code Execution

Langflow 1.3.0 code injection via /api/v1/validate/code allows unauthenticated RCE. !/usr/bin/env python3 -- coding: utf-8 -- """Langflow AI - Unauthenticated Remote Code Execution""" import json import re from kittysploit import from lib.protocols.http.httpclient import Httpclient class...

CVE-2026-9198: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/autologin mints SUPERUSER tokens to any network caller with /api/v1/validate/code executes user code via exec to achieve full RCE on default Langflow deployments...

Langflow Unauthenticated RCE (validate endpoint)

Langflow versions up to and including 1.7.3 contain a remote code execution vulnerability in the validate endpoint where unsanitized values in execglobals/code allow an attacker to execute arbitrary Python code. This module abuses the /api/v1/autologin or /api/v1/login and /api/v1/validate/code...

CVE-2025-3248

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...

CVE-2025-3248: Missing Authentication for Critical Function

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...