CVE-2026-8447
Received Received - Intake

Stored XSS in IBM Langflow OSS Playground Chat

Publication date: 2026-09-04

Last updated on: 2026-09-04

Assigner: IBM Corporation

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

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Meta Information

Published
2026-09-04
Last Modified
2026-09-04
Generated
2026-09-04
AI Q&A
2026-09-04
EPSS Evaluated
N/A
NVD
CVE-2026-8447
EUVD
EUVD-2026-71216

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ibm langflow From 1.0.0 (inc) to 1.11.2 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

IBM Langflow OSS versions 1.0.0 through 1.11.2 have a stored cross-site scripting (XSS) vulnerability in the Playground chat interface. This means malicious scripts can be stored on the server and executed when other users interact with the chat interface.

Impact Analysis

An attacker could inject malicious scripts that run in the browsers of users accessing the Playground chat. This may lead to unauthorized data access, session hijacking, or defacement of the interface. Users with administrative privileges are at higher risk.

Compliance Impact

This vulnerability could lead to unauthorized access or exposure of sensitive data, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face compliance penalties if user data is compromised.

Mitigation Strategies

Upgrade IBM Langflow OSS to a version beyond 1.11.2 to address the stored cross-site scripting vulnerability in the Playground chat interface.

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