CVE-2026-19299
Received Received - Intake

IBM Langflow OSS Path Traversal Vulnerability

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 could allow a remote authenticated attacker to obtain sensitive information due to path traversal.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-19299
EUVD
EUVD-2026-71270

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ibm langflow From 1.0.0 (inc) to 1.11.2 (inc)
ibm langflow_oss From 1.0.0 (inc) to 1.11.2 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a path traversal vulnerability in IBM Langflow OSS versions 1.0.0 through 1.11.2. It allows a remote authenticated attacker to access sensitive files on the server by exploiting improper file path validation. The attacker can read arbitrary files that the Langflow server process can access.

Detection Guidance

To detect this vulnerability, check if your Langflow OSS version is between 1.0.0 and 1.11.2. Run: langflow --version. If the output shows a version in this range, the system is vulnerable. Additionally, monitor for unusual file access patterns or unauthorized data retrieval attempts in server logs.

Impact Analysis

An attacker could steal sensitive data such as configuration files, credentials, or other confidential information stored on the server. This may lead to further attacks like privilege escalation or data breaches if the exposed files contain critical system details.

Compliance Impact

This vulnerability could result in unauthorized access to personal or sensitive data, violating GDPR and HIPAA compliance. Organizations may face legal penalties, reputational damage, and mandatory breach notifications if such data is exposed.

Mitigation Strategies

Upgrade Langflow OSS to version 1.11.3 or later immediately. This version addresses the path traversal issue. Ensure no unauthorized access has occurred before upgrading. Verify the upgrade by running langflow --version again.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-19299. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart