CVE-2025-54136

high · 7.2

Cursor is a code editor built for programming with AI. In versions 1.2.4 and below, attackers can achieve remote and persistent code execution by modifying an already trusted MCP configuration file inside a shared GitHub repository or editing the file locally on the target's machine. Once a collaborator accepts a harmless MCP, the attacker can silently swap it for a malicious command (e.g., calc.exe) without triggering any warning or re-prompt. If an attacker has write permissions on a user's active branches of a source repository that contains existing MCP servers the user has previously approved, or allows an attacker has arbitrary file-write locally, the attacker can achieve arbitrary code execution. This is fixed in version 1.3.

7.2

CVSS

27.1%

EPSS (exploit prob.)

98th

EPSS percentile

2025-08-02

Published

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-78

Affected products

Vendor	Product	Affected versions
anysphere	cursor	< 1.3

Check a specific version with /api/v1/cve/match.

References

https://github.com/cursor/cursor/security/advisories/GHSA-24mc-g4xr-4395

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-54136