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 1.8.4 Path Traversal / Remote Code Execution

Langflow versions 1.8.4 and below path traversal to remote code execution proof of concept exploit. Exploit Title: Langflow 1.8.4 - Path Traversal to Remote Code Execution Google Dork: N/A Date: 2026-07-20 Exploit Author: cardosource Vendor Homepage: https://www.langflow.org/ Software Link:...

VulnCheck KEV: CVE-2026-5027

The 'POST /api/v2/files' endpoint does not sanitize the 'filename' parameter from the multipart form data, allowing an attacker to write files to arbitrary locations on the filesystem using path traversal sequences '../'...