CVE-2026-19373

Received Received - Intake

Server-Side Request Forgery in KoboldCPP-MCP-Server

Publication date: 2026-08-09

Last updated on: 2026-08-09

Assigner: VulDB

Description

A weakness has been identified in PhialsBasement KoboldCPP-MCP-Server 1.0.0. Affected by this issue is the function makeRequest of the file src/index.ts of the component BaseConfigSchema. Executing a manipulation of the argument apiUrl can lead to server-side request forgery. It is possible to launch the attack on the local host. The project was informed of the problem early through an issue report but has not responded yet.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-09

Last Modified

2026-08-09

Generated

2026-08-10

AI Q&A

2026-08-10

EPSS Evaluated

N/A

NVD

CVE-2026-19373

EUVD

EUVD-2026-54960

Affected Vendors & Products

Vendor	Product	Version / Range
phialsbasement	koboldcpp-mcp-server	1.0.0

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

This vulnerability is a server-side request forgery (SSRF) weakness in PhialsBasement KoboldCPP-MCP-Server 1.0.0. It exists in the makeRequest function of src/index.ts within the BaseConfigSchema component. By manipulating the apiUrl argument, an attacker can trick the server into making unauthorized requests. The project was notified but has not responded.

Detection Guidance

This vulnerability involves server-side request forgery (SSRF) via manipulation of the apiUrl argument in the makeRequest function of KoboldCPP-MCP-Server. To detect it, monitor network traffic for unusual outbound requests originating from the server, especially to internal or unexpected hosts. Check application logs for requests with manipulated apiUrl values or unexpected destinations.

Impact Analysis

An attacker could exploit this to send crafted requests from your server to internal or external systems. This may lead to unauthorized data access, internal service probing, or further attacks against connected systems. The impact is limited to local host attacks as per the description.

Compliance Impact

This vulnerability, a server-side request forgery (SSRF) in PhialsBasement KoboldCPP-MCP-Server, could potentially expose sensitive data or internal systems if exploited. While the CVSS scores indicate low impact, SSRF risks may violate GDPR or HIPAA if unauthorized data access occurs. However, specific compliance impact depends on deployment context and data handling.

Mitigation Strategies

Immediately update PhialsBasement KoboldCPP-MCP-Server to the latest version if available. If no update exists, disable the server-side request forgery vulnerability by restricting access to the makeRequest function in src/index.ts. Ensure apiUrl input validation is enforced to prevent manipulation.

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