CVE-2026-5027
Langflow - Path Traversal Arbitrary File Write via upload_user_file
- State
- Published
- Severity
- 8.8 High
- Published
- Mar 27, 2026
- Updated
- Mar 27, 2026
- Reserved
- Mar 27, 2026
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 ('../').
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | tenable |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
Affected Products
| Product | Versions |
|---|---|
langflowlangflow-ai |
|
References
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