CVE-2026-86173
Received Received - Intake

MindsDB Server-Side Request Forgery in Web Crawler

Publication date: 2026-09-05

Last updated on: 2026-09-05

Assigner: VulnCheck

Description
MindsDB through 26.1.0 contains a server-side request forgery vulnerability in the web crawler handler that allows unauthenticated attackers to fetch arbitrary URLs by supplying caller-controlled URLs to CrawlerTable.list. Attackers can bypass the allowlist control by exploiting the default empty configuration and access internal services and cloud metadata endpoints without authentication.

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Meta Information

Published
2026-09-05
Last Modified
2026-09-05
Generated
2026-09-05
AI Q&A
2026-09-05
EPSS Evaluated
N/A
NVD
CVE-2026-86173
EUVD
EUVD-2026-71972

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mindsdb mindsdb 26.1.0

Helpful Resources

Exploitability

CWE
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KEV
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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.

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Executive Summary

This vulnerability is a server-side request forgery (SSRF) in MindsDB through version 26.1.0. It allows unauthenticated attackers to make arbitrary HTTP requests by exploiting the web crawler handler. The issue occurs in the CrawlerTable.list function where attackers supply controlled URLs to bypass the default empty allowlist. This enables access to internal services and cloud metadata endpoints without authentication.

Detection Guidance

To detect this vulnerability, monitor network traffic for unauthorized outbound requests from the MindsDB service, particularly to internal or cloud metadata endpoints. Check logs for CrawlerTable.list function calls with external URLs. Use tools like curl to test if the web crawler handler accepts arbitrary URLs without validation.

Impact Analysis

This vulnerability allows attackers to access internal services and cloud metadata endpoints without authentication. They can bypass security controls to fetch sensitive data or interact with internal systems. The impact includes potential data breaches, unauthorized access to internal resources, and compromise of cloud infrastructure.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR and HIPAA requirements for data protection and access controls. Non-compliance may result in legal penalties, fines, and reputational damage due to exposure of personal or health information.

Mitigation Strategies

Immediately upgrade MindsDB to a patched version beyond 26.1.0. If upgrading is not possible, disable the web crawler handler or restrict the allowlist to trusted domains. Implement network-level controls to block outbound requests from the MindsDB service to internal or cloud metadata endpoints.

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