CVE-2026-17631

Received Received - Intake

IBM Langflow SSRF Vulnerability Exposes Sensitive Data

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 authenticated attacker to obtain sensitive information due to a server-side request forgery (SSRF) vulnerability.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-04

Last Modified

2026-09-04

Generated

2026-09-05

AI Q&A

2026-09-05

EPSS Evaluated

N/A

NVD

CVE-2026-17631

EUVD

EUVD-2026-71462

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	langflow_oss	From 1.0.0 (inc) to 1.10.2 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

IBM Langflow OSS versions 1.0.0 through 1.10.2 have a server-side request forgery (SSRF) vulnerability. This allows a remote authenticated attacker to trick the server into making unauthorized requests to internal or external systems, potentially exposing sensitive information.

Detection Guidance

Detection involves checking for unusual network requests or SSRF indicators. Monitor logs for outbound requests to internal or restricted systems. Use network scanning tools like nmap to identify unexpected open ports or services. Check application logs for patterns like 'http://localhost', 'http://127.0.0.1', or internal IP addresses in request URLs.

Impact Analysis

An attacker could exploit this to access internal services, retrieve sensitive data, or perform unauthorized actions on behalf of the server. This may lead to data breaches, unauthorized access to systems, or further network compromise.

Compliance Impact

This vulnerability could result in unauthorized data exposure, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance violations, legal penalties, and reputational damage due to potential data leaks.

Mitigation Strategies

Upgrade IBM Langflow OSS to the latest version beyond 1.10.2. Apply network-level restrictions to block outbound requests to internal or sensitive systems. Implement input validation for URLs in requests. Restrict user permissions to minimize access to sensitive data.

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