CVE-2026-5027

Langflow - Path Traversal Arbitrary File Write via upload_user_file PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
langflow-ai / langflow	affected 0

CWE

CWE-22

References

https://www.tenable.com/security/research/tra-2026-26

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.