CVE-2026-4502

MEDIUM

Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API

Title source: cna

Description

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.

References (1)

[Vendor Advisory] https://www.ibm.com/support/pages/node/7271097

Scores

CVSS v3 6.5

EPSS 0.0005

EPSS Percentile 14.1%

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-22

Status published

Products (1)

IBM/Langflow Desktop 1.2.0 - 1.8.4

Published Apr 30, 2026

Tracked Since May 01, 2026