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CVE-2026-50548— Cursor Desktop sandbox escape via agent-controlled working directory

Quick assessment

Affected
cursor cursor
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cursor是Cursor公司的一款深度集成AI的智能代码编辑器。 Cursor 3.0之前版本存在路径遍历漏洞，该漏洞源于代理可修改working_directory参数，导致沙箱包含工作区外的可写路径，恶意代理可在用户权限下在工作区外写入任意文件，实现非沙箱远程代码执行。

AI Predicted 8.8 Difficulty: Easy EPSS 1.01% · P61

Affected Version Matrix 1

VendorProduct Version RangeStatus
cursor cursor < 3.0 affected
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I. Basic Information for CVE-2026-50548

Vulnerability Information
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Vulnerability Title
Cursor Desktop sandbox escape via agent-controlled working directory
Source: CVE Program / CVE List V5
Vulnerability Description
Cursor is a code editor built for programming with AI. Prior to 3.0, Cursor runs agent terminal commands in a sandbox by default, and the sandbox grants write access to the command's working directory. A flaw was identified in how the agent could modify the working_directory parameter, which could cause the sandbox to include writable paths outside the intended workspace. A malicious agent could set working_directory to a sensitive location and write arbitrary files outside the workspace under the user's privileges. This enables non-sandboxed Remote Code Execution — for example by overwriting the cursorsandbox helper so later commands run unsandboxed — with no user interaction beyond a benign prompt. This vulnerability is fixed in 3.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Cursor 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cursor是Cursor公司的一款深度集成AI的智能代码编辑器。 Cursor 3.0之前版本存在路径遍历漏洞，该漏洞源于代理可修改working_directory参数，导致沙箱包含工作区外的可写路径，恶意代理可在用户权限下在工作区外写入任意文件，实现非沙箱远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
cursor cursor < 3.0 -

II. Public POCs for CVE-2026-50548

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
default-local-qwen3.6 · 13390 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-50548

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Vendor Advisories for CVE-2026-50548 (1)

IV. Related Vulnerabilities

Same product: cursor
Same vendor: cursor
Same weakness: CWE-22

V. Comments for CVE-2026-50548

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