CVE-2026-4502 MEDIUM

CVE-2026-4502: Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API

Vendor Ibm
Product Langflow Desktop
Weakness CWE-22 · Path traversal
Published April 30, 2026
Last update June 12, 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 None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.

Key dates

02Disclosure timeline

April 30, 2026 CVE published
June 12, 2026 Record updated