Critical severity · published Oct 3, 2025
CVE-2025-59944
Cursor IDE: Sensitive File Overwrite Bypass is Possible
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
Cursor is a code editor built for programming with AI. Versions 1.6.23 and below contain case-sensitive checks in the way Cursor IDE protects its sensitive files (e.g., */.cursor/mcp.json), which allows attackers to modify the content of these files through prompt injection and achieve remote code execution. A prompt injection can lead to full RCE through modifying sensitive files on case-insensitive fileystems. This issue is fixed in version 1.7.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CU
cursor · cursor
< 1.7 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59944
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59944
Vendor Advisory
https://github.com/cursor/cursor/security/advisories/GHSA-xcwh-rrwj-gxc7
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