CVE-2025-6514

OS command injection in mcp-remote when connecting to untrusted MCP servers

State: Published
Severity: 9.6 Critical
Published: Jul 9, 2025
Updated: Jul 9, 2025
Reserved: Jun 23, 2025

Description

mcp-remote is exposed to OS command injection when connecting to untrusted MCP servers due to crafted input from the authorization_endpoint response URL

Scores

CVSS	Score	Vector	Source
3.1	9.6 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	JFROG

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
mcp-remote	0.0.5 through 0.1.15Affected

References

https://research.jfrog.com/vulnerabilities/mcp-remote-command-injection-rce-jfsa-2025-001290844/third-party-advisory
https://github.com/geelen/mcp-remote/commit/607b226a356cb61a239ffaba2fb3db1c9dea4bacpatch
https://jfrog.com/blog/2025-6514-critical-mcp-remote-rce-vulnerabilitytechnical-description

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.