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OpenAdvisories
Critical · 9.3 CVE-2026-42074 EUVD-2026-33972GHSA-m77w-p5jj-xmhg

OpenClaude: Sandbox Bypass via Model-Controlled `dangerouslyDisableSandbox` Input

Published Jun 2, 2026 · Updated Jun 2, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
Gitlawb openclaude < 0.5.1 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm openclaude < 0.5.1 0.5.1 GHSA-m77w-p5jj-xmhg

References