CVE-2026-9198

🚨 CVE-2026-9198 IBM Langflow OSS Unauthenticated RCE via Auto-Login Bypass 📋 Overview CVE-2026-9198 is a critical unauthenticated Remote Code Execution RCE vulnerability in IBM Langflow OSS. This exploit chains two vulnerabilities: CVE-2026-9103 : Auto-login bypass that grants superuser JWT token...

Mass-CVE-2025-3248

Langflow CVE-2025-3248 Exploit Tool Overview This tool exploits the critical Remote Code Execution RCE vulnerability CVE-2025-3248 found in Langflow versions prior to 1.3.0. The vulnerability exists in the /api/v1/validate/code endpoint which improperly executes user-supplied code without...

langflow-CVE-2026-33017-poc

CVE-2026-33017 — Langflow Unauthenticated RCE PoC For educational and authorized testing purposes only. Summary Langflow = 1.8.1 exposes a public flow build endpoint that accepts attacker-controlled flow data containing arbitrary code. This code is passed to prepareglobalscope in validate.py, whi...

langflow-cors-scanner

CVE-2025-34291 — Langflow Origin Validation / CORS Overview Overly permissive CORS config combined with refresh token cookie config allows credential theft. Field| Value ---|--- CVE| CVE-2025-34291 Severity| HIGH Product| Langflow CISA KEV| 2026-05-21 Attack Type| Origin Validation / CORS Auth...

CVE-2026-33017

CVE-2026-33017 Langflow RCE ★ CVE-2026-33017 Langflow Remote Code Execution PoC ★ https://github.com/user-attachments/assets/562fc637-6be1-4ab9-a396-bfad56447af7 Environment Setup Use the following commands to build and run the vulnerable Langflow environment: docker build -t...

CVE-2026-33017-Langflop

CVE-2026-33017 Langflow "Langflop" Unauth RCE PoC PoC for the unauthenticated buildpublictmp code-execution flaw in Langflow. It uploads a malicious component to a public flow, triggers a build, and catches a reverse shell. For authorized security testing only. Use only against systems you own or...

Langflow < 1.9.1 - Unauthenticated File Upload

Langflow 1.9.1 contains an unrestricted file upload caused by lack of upload limitations, letting unauthenticated attackers exhaust server space and leak absolute file paths, exploit requires network access. id: CVE-2026-55450 info: name: Langflow 1.9.1 - Unauthenticated File Upload author: xtr0n...

Langflow <= 1.0.12 - Remote Code Execution

Langflow 0.6.19 contains a remote code execution caused by accepting untrusted Python scripts in the /api/v1/customcomponent endpoint, letting remote attackers execute arbitrary code, exploit requires access to the endpoint and untrusted script input. id: CVE-2024-37014 info: name: Langflow =...

Langflow - Broken Access Control

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.0.dev45, multiple critical API endpoints in Langflow are missing authentication controls. The issue allows any unauthenticated user to access sensitive user conversation data, transaction histories...

Langflow < 1.3.0 - Remote Code Execution via validate_code() exec()

Langflow contains a remote code execution caused by inclusion of functionality from untrusted control sphere in the execglobals parameter at the validate endpoint, letting remote attackers execute arbitrary code as root, exploit requires no authentication. id: CVE-2026-0770 info: name: Langflow...

Langflow < 1.9.0 - Remote Code Execution

Langflow versions prior to 1.9.0 are vulnerable to unauthenticated remote code execution RCE via the buildpublictmp endpoint. Attackers can submit a manipulated flow JSON containing Python code that is executed during the build process without proper sandboxing. id: CVE-2026-33017 info: name:...

Langflow <= 1.8.4 - Path Traversal to RCE via File Upload

The application contains a path traversal vulnerability caused by unsanitized 'filename' parameter in the 'POST /api/v2/files' multipart form data, letting attackers write files to arbitrary filesystem locations, exploit requires crafted request. id: CVE-2026-5027 info: name: Langflow = 1.8.4 -...

Langflow <=1.2.x - Unauthenticated Remote Code Execution via validate_code

Langflow = 1.2.x exposes POST /api/v1/validate/code without any authentication. The endpoint calls validatecode which execs user-supplied Python code. Default-argument expressions in Python execute at function-definition time, allowing arbitrary OS command execution without authentication. id:...

Langflow OSS - Superuser Token Issuance

Langflow OSS with default AUTOLOGIN exposes /api/v1/autologin, which returns a superuser access token to any unauthenticated request. id: CVE-2026-9103 info: name: Langflow OSS - Superuser Token Issuance author: str4k3r severity: critical description: | Langflow OSS with default AUTOLOGIN exposes...

IBM Langflow - Remote Code Execution

IBM Langflow OSS 1.0.0 through 1.10.0 contains a remote code execution caused by chaining /api/v1/autologin and /api/v1/validate/code endpoints, letting unauthenticated attackers execute arbitrary code remotely, exploit requires no authentication. id: CVE-2026-9198 info: name: IBM Langflow - Remo...

Langflow < 1.7.0 - Path Traversal

Langflow 1.7.1 contains a path traversal caused by insufficient filtering of foldername and filename parameters in downloadprofilepicture endpoint, letting attackers read secretkey across directories, exploit requires crafted request. id: CVE-2026-33497 info: name: Langflow 1.7.0 - Path Traversal...

EUVD-2026-91120

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...

EUVD-2026-91119

langflow-ai langflow v1.8.4 is affected by: Directory Traversal. The impact is: Arbitrary file write outside the intended workspace or storage boundary.. The component is:...

CVE-2026-33017

🚨 CVE-2026-33017 - Critical Unauthenticated Remote Code Execution in Langflow Langflow versions ≤ 1.8.2 contain a severe security vulnerability that allows unauthenticated attackers to achieve Remote Code Execution RCE on the server. 📊 Vulnerability Details Attribute| Details ---|--- CVE ID|...

CVE-2025-3248

POC - Remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code - CVE-2025-3248 Overview 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 request...