Vulnerability details

CVE-2025-6514

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

CVSS 3.1

9.6Critical

Official 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

CVSS scores

Score	Version	Source	Vector
9.6Critical	3.1	CVEProject cvelistV5 (CNA) (JFROG)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
No product information recorded.

References and advisories

https://research.jfrog.com/vulnerabilities/mcp-remote-command-injection-rce-jfsa-2025-001290844/ third-party-advisory
https://github.com/geelen/mcp-remote/commit/607b226a356cb61a239ffaba2fb3db1c9dea4bac patch
https://jfrog.com/blog/2025-6514-critical-mcp-remote-rce-vulnerability technical-description

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Details

Published: 2025-07-09
Last updated: 2025-07-09
State: Published
Assigner (CNA): JFROG

Exploit prediction (EPSS)

77.02%

Probability of exploitation in 30 days

99.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

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