Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-61591

Cursor is a code editor built for programming with AI. In versions 1.7 and below, when MCP uses OAuth authentication with an untrusted MCP server, an attacker can impersonate a malicious MCP server and return crafted, maliciously injected commands during the interaction process, leading to command injection and potential remote code execution. If chained with an untrusted MCP service via OAuth, this command injection vulnerability could allow arbitrary code execution on the host by the agent. This can then be used to directly compromise the system by executing malicious commands with full user privileges. This issue does not currently have a fixed release version, but there is a patch, 2025.09.17-25b418f.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 35.1%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2025-61591


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