CVE-2025-49150

MEDIUM

Cursor < 0.51.0 - Unauthenticated Exposure of Sensitive Information via JSON Schema Download

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.9
EPSS 0.0032
EPSS Percentile 23.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (1)
getcursor/cursor < 0.51.0
Published Jun 11, 2025
Tracked Since Feb 18, 2026