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CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-5027

Langflow - Path Traversal Arbitrary File Write via upload_user_file

Description

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 ('../').

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

langflow-ai langflow

Default version status: unaffected

  • 0affected

References