CVE-2025-54135 Information

Description

Cursor is a code editor built for programming with AI. Cursor allows writing in-workspace files with no user approval in versions below 1.3.9 If the file is a dotfile editing it requires approval but creating a new one doesn’t. Hence if sensitive MCP files such as the .cursor/mcp.json file don’t already exist in the workspace an attacker can chain a indirect prompt injection vulnerability to hijack the context to write to the settings file and trigger RCE on the victim without user approval. This is fixed in version 1.3.9.

Reference

https://github.com/cursor/cursor/security/advisories/GHSA-4cxx-hrm3-49rm

Related CNNVD

CNNVD-202508-284 (Published: 2025-08-05)