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CVE-2026-42074— OpenClaude: Sandbox Bypass via Model-Controlled `dangerouslyDisableSandbox` Input

Quick assessment

Affected
Gitlawb openclaude
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenClaude是Gitlawb开源的一个支持多后端的开源编码助手CLI。 OpenClaude 0.5.1之前版本存在安全漏洞，该漏洞源于dangerouslyDisableSandbox参数暴露在BashTool输入模式中且默认allowUnsandboxedCommands设置为true，可能导致提示注入模型逃逸沙箱实现主机级代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 0.59% · P46

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell

Affected Version Matrix 1

VendorProduct Version RangeStatus
Gitlawb openclaude < 0.5.1 affected
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I. Basic Information for CVE-2026-42074

Vulnerability Information
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Vulnerability Title
OpenClaude: Sandbox Bypass via Model-Controlled `dangerouslyDisableSandbox` Input
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Prior to version 0.5.1, the dangerouslyDisableSandbox parameter is exposed as part of the BashTool input schema, meaning the LLM (an untrusted principal per the project's own threat model) can set it to true in any tool_use response. Combined with the default allowUnsandboxedCommands: true setting, a prompt-injected model can escape the sandbox for any arbitrary command, achieving full host-level code execution. This issue has been patched in version 0.5.1.
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
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
OpenClaude 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenClaude是Gitlawb开源的一个支持多后端的开源编码助手CLI。 OpenClaude 0.5.1之前版本存在安全漏洞，该漏洞源于dangerouslyDisableSandbox参数暴露在BashTool输入模式中且默认allowUnsandboxedCommands设置为true，可能导致提示注入模型逃逸沙箱实现主机级代码执行。
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
Gitlawb openclaude < 0.5.1 -

II. Public POCs for CVE-2026-42074

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III. Intelligence Information for CVE-2026-42074

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Patches & Fixes for CVE-2026-42074 (1)

Vendor Advisories for CVE-2026-42074 (1)

IV. Related Vulnerabilities

Same product: openclaude
Same vendor: Gitlawb
Same weakness: CWE-306

V. Comments for CVE-2026-42074

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