VulnerabilityDeferred

CVE-2025-49150

This means that by writing a JSON file, an attacker can trigger an arbitrary HTTP GET request that does not require user confirmation.

MEDIUM 5.9EPSS 0.38%

Does this matter?

Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1: 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.38% probability · 32th percentile
CISA KEV: Not listed
Weakness: CWE-200
Source: security-advisories@github.com

References

https://github.com/getcursor/cursor/security/advisories/GHSA-9h3v-h59j-v6rj

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.