CVE-2025-49150: Cursor is a code editor built for programming with AI. Prior to 0.51.0, by default, the setting json.schemaDownload.enab
mediumvulnerability
security
Summary
Cursor, a code editor designed for AI-assisted programming, had a security flaw in versions before 0.51.0 where JSON files could automatically trigger web requests without user approval. An attacker could exploit this, especially after a prompt injection attack (tricking the AI with hidden instructions in its input), to make the AI agent send data to a malicious website.
Solution / Mitigation
The vulnerability is fixed in version 0.51.0. Users should update to this version or later.
Vulnerability Details
CVSS Score
5.9(medium)
EPSS (30-day exploit probability)
EPSS: 0.1%
Classification
Attack Type
Prompt Injection
Attack SophisticationModerate
Impact (CIA+S)
confidentialityintegrity
Affected Vendors
Related Issues
Original source: https://nvd.nist.gov/vuln/detail/CVE-2025-49150
First tracked: February 15, 2026 at 08:52 PM
Classified by LLM (prompt v3) · confidence: 92%