CVE-2025-66580

Name: CVE-2025-66580
Creator: NVD / NIST
Published: 2025-12-19T17:15:53.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.6/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2025-66580 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. Dive is an open-source MCP Host Desktop Application that enables integration with function-calling LLMs. A critical Stored Cross-Site Scripting (XSS) vulnerability exists in versions prior to 0.11.1 in the Mermaid diagram rendering component. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

Dive is an open-source MCP Host Desktop Application that enables integration with function-calling LLMs. A critical Stored Cross-Site Scripting (XSS) vulnerability exists in versions prior to 0.11.1 in the Mermaid diagram rendering component. The application allows the execution of arbitrary JavaScript via `javascript:`. An attacker can exploit this to inject a malicious Model Context Protocol (MCP) server configuration, leading to Remote Code Execution (RCE) on the victim's machine when the node is clicked. Version 0.11.1 fixes the issue.

Metrics

CVSS 3.1

9.6/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS Probability

0.48%

37.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openagentplatform	Dive	< 0.11.1

References

https://github.com/OpenAgentPlatform/Dive/security/advisories/GHSA-xv8m-365j-x6h2Exploit, Vendor Advisory
https://github.com/OpenAgentPlatform/Dive/security/advisories/GHSA-xv8m-365j-x6h2Exploit, Vendor Advisory

Timeline

Published: Dec 19, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-66580?

How severe is CVE-2025-66580?

CVE-2025-66580 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66580?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-66580?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST