CVE-2026-12767

Received Received - Intake

IBM Langflow SSRF Vulnerability in Versions 1.0.0 to 1.11.5

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: IBM Corporation

Description

IBM Langflow OSS 1.0.0 through 1.11.5 is vulnerable to server-side request forgery (SSRF). This may allow an unauthenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-14

Last Modified

2026-09-14

Generated

2026-09-15

AI Q&A

2026-09-15

EPSS Evaluated

N/A

NVD

CVE-2026-12767

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	langflow_oss	From 1.0.0 (inc) to 1.11.5 (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 1.11.5 have a server-side request forgery (SSRF) vulnerability. This flaw allows unauthenticated attackers to send unauthorized requests from the affected system. The issue could enable network scanning or be used as a step in more complex attacks.

Impact Analysis

An attacker could exploit this to access internal systems, bypass firewalls, or probe network resources. This may lead to data leaks, unauthorized access to sensitive services, or further compromise of connected systems.

Compliance Impact

SSRF vulnerabilities can violate data protection requirements by exposing internal systems or sensitive data. This may lead to non-compliance with GDPR, HIPAA, or other regulations due to unauthorized data access or network exposure.

Mitigation Strategies

Update IBM Langflow OSS to a version beyond 1.11.5 to address the SSRF vulnerability. If immediate update is not possible, restrict network access to the affected system and monitor for unauthorized requests.

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