CVE-2026-17621
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 1.10.2 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot " sequences ( /.. /) to view arbitrary files on the system.

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Meta Information

Published
2026-09-04
Last Modified
2026-09-04
Generated
2026-09-05
AI Q&A
2026-09-04
EPSS Evaluated
N/A
NVD
CVE-2026-17621
EUVD
EUVD-2026-71464

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ibm langflow From 1.0.0 (inc) to 1.10.2 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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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

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Executive Summary

IBM Langflow OSS versions 1.0.0 through 1.10.2 have a directory traversal vulnerability. This allows a remote attacker to access files outside intended directories by sending a URL with 'dot dot' sequences like /../. The attacker could view sensitive files on the system.

Impact Analysis

An attacker could exploit this to read sensitive files on the server, including configuration files, logs, or other confidential data. This may lead to information disclosure, unauthorized access, or further attacks if credentials or keys are exposed.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA by exposing personal or health data. GDPR requires protecting personal data, while HIPAA mandates safeguarding health information. A breach could result in legal penalties and reputational damage.

Mitigation Strategies

Update IBM Langflow OSS to a version beyond 1.10.2 to address the directory traversal vulnerability. Ensure proper input validation for URL requests to prevent "dot dot" sequences from being processed.

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