CVE-2025-54136

Cursor is a code editor built for programming with AI. In versions 1.2.4 and below, attackers can achieve remote and persistent code execution by modifying an already trusted MCP configuration file inside a shared GitHub repository or editing the file locally on the target's machine. Once a collaborator accepts a harmless MCP, the attacker can silently swap it for a malicious command (e.g., calc.exe) without triggering any warning or re-prompt. If an attacker has write permissions on a user's active branches of a source repository that contains existing MCP servers the user has previously approved, or allows an attacker has arbitrary file-write locally, the attacker can achieve arbitrary code execution. This is fixed in version 1.3.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/cursor/cursor/security/advisories/GHSA-24mc-g4xr-4395	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:anysphere:cursor:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-08-02 00:15

Updated : 2025-08-25 01:41

NVD link : CVE-2025-54136

Mitre link : CVE-2025-54136

CVE.ORG link : CVE-2025-54136

JSON object : View

Products Affected

anysphere

cursor

CWE

CWE-78

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

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