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Vulnerabilities

CVE-2025-54135 | BDVDB-2026-288502 Detail

cursorcursor

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-829 Inclusion of Functionality from Untrusted Control Sphere

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.