CVE-2026-19294

Analyzed Analyzed - Analysis Complete

IBM Langflow OSS Private Flow Exposure Vulnerability

Publication date: 2026-08-28

Last updated on: 2026-08-31

Assigner: IBM Corporation

Description

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote authenticated attacker to execute and read any user's private flow due to improper authorization.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-28

Last Modified

2026-08-31

Generated

2026-09-18

AI Q&A

2026-08-29

EPSS Evaluated

2026-09-15

NVD

CVE-2026-19294

EUVD

EUVD-2026-67957

Affected Vendors & Products

Vendor	Product	Version / Range
langflow	langflow	From 1.0.0 (inc) to 1.11.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-639	The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

Executive Summary

IBM Langflow OSS versions 1.0.0 through 1.11.1 have an improper authorization issue. A remote authenticated attacker could exploit this to execute and read any user's private flow.

Detection Guidance

This vulnerability allows remote authenticated attackers to access private flows due to improper authorization. Detection requires checking for unauthorized access to user flows or unusual activity in the IBM Langflow system. Review logs for unexpected read or execute actions on flows not owned by the authenticated user.

Impact Analysis

An attacker could access sensitive data from private flows, leading to unauthorized information disclosure or potential misuse of intellectual property.

Compliance Impact

This vulnerability could result in unauthorized data access, potentially violating GDPR (data protection) and HIPAA (health information privacy) requirements.

Mitigation Strategies

Update IBM Langflow OSS to the latest version beyond 1.11.1 to address the improper authorization issue. Ensure only authenticated users have necessary permissions and restrict access to private flows.

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