CVE-2025-54135 (GCVE-0-2025-54135)
Vulnerability from cvelistv5
Published
2025-08-05 00:11
Modified
2025-08-05 13:58
Severity ?
8.5 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-829 - Inclusion of Functionality from Untrusted Control Sphere
Summary
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.
References
security-advisories@github.comhttps://github.com/cursor/cursor/security/advisories/GHSA-4cxx-hrm3-49rmVendor Advisory, Mitigation
Impacted products
Vendor Product Version
cursor cursor Version: < 1.3.9
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