CVE-2026-3345 MEDIUM

CVE-2026-3345: Path Traversal and Arbitrary File Write Vulnerability in IBM Langflow Desktop API v2 File Upload Endpoint

Vendor Ibm
Product Langflow Desktop
Weakness CWE-22 · Path traversal
Published April 30, 2026
Last update May 27, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

IBM Langflow Desktop <=1.8.4 Langflow could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.

Key dates

02Disclosure timeline

April 30, 2026 CVE published
May 27, 2026 Record updated