CVE-2026-9081
Received Received - Intake

SSRF Vulnerability in IBM Langflow OSS

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: IBM Corporation

Description
IBM Langflow OSS 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the validate_model_provider_key() function for the Ollama provider. The function accepts a user-supplied OLLAMA_BASE_URL parameter and passes it directly to requests.get() without validation, scheme/host allowlisting, or filtering of private IP ranges (loopback, RFC1918, link-local addresses).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-9081
EUVD
EUVD-2026-53568

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ibm langflow_oss From 1.0.0 (inc) to 1.10.3 (inc)
ibm langflow_oss 1.11.0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a Server-Side Request Forgery (SSRF) vulnerability in IBM Langflow OSS versions 1.0.0 through 1.10.3. It occurs in the validate_model_provider_key() function for the Ollama provider, where the OLLAMA_BASE_URL parameter is passed directly to requests.get() without validation or filtering of private IP ranges.

Detection Guidance

Detecting this SSRF vulnerability requires checking for instances of IBM Langflow OSS versions 1.0.0 through 1.10.3 and reviewing the Ollama provider configuration for unvalidated OLLAMA_BASE_URL parameters. Inspect network logs for outbound requests to private IP ranges or unexpected external hosts.

Impact Analysis

An attacker could exploit this to make the server send unauthorized requests to internal systems, potentially accessing sensitive data or services. This could lead to data breaches, unauthorized access to internal resources, or further attacks on the network.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements and HIPAA's security rules. Organizations may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Immediately upgrade IBM Langflow OSS to a version beyond 1.10.3 where the vulnerability is patched. If upgrading is not possible, restrict network access to prevent outbound requests to private IP ranges and implement allowlisting for OLLAMA_BASE_URL.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-9081. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart