CVE-2026-42074 PUBLISHED

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

Assigner: GitHub_M
Reserved: 23.04.2026 Published: 02.06.2026 Updated: 02.06.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 9.3

Product Status

Vendor Gitlawb
Product openclaude
Versions
  • Version < 0.5.1 is affected

References

Problem Types

  • CWE-306: Missing Authentication for Critical Function CWE
  • CWE-284: Improper Access Control CWE