CVE-2026-3346 MEDIUM

CVE-2026-3346: Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw

Vendor Ibm
Product Langflow Desktop
Weakness CWE-89 · SQLi
Published April 30, 2026
Last update May 1, 2026
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Key dates

02Disclosure timeline

April 30, 2026 CVE published
May 1, 2026 Record updated