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CVE-2025-49150: Cursor is a code editor built for programming with AI. Prior to 0.51.0, by default, the setting json…

Occurred
Jun 11, 2025
Published
Jun 11, 2025
Source
NVD CVE

Summary

Cursor is a code editor built for programming with AI. Prior to 0.51.0, by default, the setting json.schemaDownload.enable was set to True. This means that by writing a JSON file, an attacker can trigger an arbitrary HTTP GET request that does not require user confirmation. Since the Cursor Agent can edit JSON files, this means a malicious agent, for example, after a prompt injection attack already succeeded, could trigger a GET request to an attacker controlled URL, potentially exfiltrating other data the agent may have access to. This vulnerability is fixed in 0.51.0.

Tags

  • CVE
  • CVE-2025-49150
  • cvss:MEDIUM

Classification

Category confidence: 85%
Severity confidence: 80%

Rationale: Vulnerability allows unauthorized data exfiltration via arbitrary HTTP requests triggered by malicious JSON files.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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