CVE-2026-3346

Name: CVE-2026-3346
Creator: NVD / NIST
Published: 2026-04-30T21:16:32.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.4/10EPSS 0.16%

Last modified Jun 17, 2026

CVE-2026-3346 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. 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.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.4/10

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

EPSS Probability

0.16%

5.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Langflow	Langflow Desktop	>= 1.6.0, <= 1.8.4

References

https://www.ibm.com/support/pages/node/7271095Vendor Advisory

Timeline

Published: Apr 30, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3346?

How severe is CVE-2026-3346?

CVE-2026-3346 has a CVSS score of 6.4/10 (MEDIUM severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3346?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3346?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST