High · published December 19, 2025
⚡ A sneaky path traversal vulnerability in Langflow could let attackers write files anywhere on your server - no restrictions whatsoever! 🔥 Think of it as a restaurant accepting orders without checking if the kitchen can actually make them. If you ask for a dish from the top of the menu while being a regular diner, the restaurant might just make it without a second thought, potentially serving it with the wrong ingredients. An attacker could exploit this flaw by specifying dangerous file paths, allowing them to create or overwrite crucial files on your system. This means they could potentially mess with configuration files or plant malicious scripts, leading to data loss and compromised security.
Think of it as a restaurant accepting orders without checking if the kitchen can actually make them. If you ask for a dish from the top of the menu while being a regular diner, the restaurant might just make it without a second thought, potentially serving it with the wrong ingredients. This vulnerability arises because Langflow does not validate or sanitize the `fs_path` in the request body, allowing arbitrary file paths to be serialized and written to by the server. Versions prior to 1.7.0 are vulnerable to this issue.
An attacker could exploit this flaw by specifying dangerous file paths, allowing them to create or overwrite crucial files on your system. This means they could potentially mess with configuration files or plant malicious scripts, leading to data loss and compromised security. Upgrade Langflow immediately to version 1.7.0 or later. While you're at it, review your application for any other areas where file paths are specified without proper validation. You've got this! Patch up and secure your Langflow setup with confidence! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| langflow/langflow | < 1.7.0 | 1.7.0 |