CVE-2026-8447

CVE-2026-8447

IBM Langflow OSS 1.0.0 through 1.11.2 suffer from a stored cross-site scripting vulnerability in the Playground chat interface.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@us.ibm.com

Frequently asked questions

What is CVE-2026-8447?: CVE-2026-8447 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-09-04.
How severe is CVE-2026-8447?: Medium severity. CVSS v3 base score is 6.1 out of 10.