Overview
The vulnerability CVE-2025-58176 presents a significant threat to users of the open-source MCP Host Desktop Application, Dive, particularly those running versions 0.9.0 through 0.9.3. This vulnerability allows an attacker to execute remote code on a victim’s machine through a carefully crafted URL, potentially compromising user data and system integrity. Given the wide usage of Dive in managing function-calling LLMs, this vulnerability puts a substantial number of systems at risk.
Vulnerability Summary
CVE ID: CVE-2025-58176
Severity: High (CVSS:8.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
Dive MCP Host Desktop Application | 0.9.0 – 0.9.3
How the Exploit Works
The vulnerability stems from Dive’s improper handling of custom URLs. In the compromised versions, the application’s misprocessing allows for a one-click Remote Code Execution vulnerability. An attacker can exploit this by embedding a malicious URL in a JSON object’s `transport` field. Subsequently, when a user either visits a malicious website controlled by the attacker or clicks on a similarly crafted link on a legitimate site, the browser invokes Dive’s custom URL handler. This action launches the application and processes the malicious URL, leading to arbitrary code execution on the victim’s machine.
Conceptual Example Code
An example of how the vulnerability could be exploited is shown below:
GET /malicious_page.html HTTP/1.1
Host: attacker-controlled-site.com
HTML Response:
<a href="dive://malicious_site.com?transport={malicious_code}">In this example, the malicious_page.html contains a link that, when clicked or automatically redirected, will invoke the Dive application, processing the malicious code embedded within the URL, leading to the remote code execution.
Prevention and Mitigation
The most effective way to prevent exploitation of this vulnerability is to update the Dive MCP Host Desktop Application to version 0.9.4 or later, which contains the necessary patch. For temporary mitigation, Web Application Firewalls (WAFs) or Intrusion Detection Systems (IDS) can be used to block or alert on suspicious URL handling. Users should be cautious about clicking on unknown or suspicious links, particularly those that may invoke the Dive application.
