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TI-2026-30442 Aliases CVE-2026-42074GHSA-m77w-p5jj-xmhg

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

Priority HIGH 81CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-284.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00589 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed openclaude (Gitlawb): 0.5.1openclaude (npm): 0.5.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Gitlawbopenclaudebefore 0.5.10.5.1Patch availableCNA
—openclaude (npm)before 0.5.10.5.1Patch availableGHSA-m77w-p5jj-xmhg
  • openclaude VendorGitlawb Affected before 0.5.1 Fixed in 0.5.1 Patch available CNA
  • openclaude (npm) Vendor— Affected before 0.5.1 Fixed in 0.5.1 Patch available GHSA-m77w-p5jj-xmhg

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gitlawb:openclaude:*:*:*:*:*:*:*:*before 0.5.1VulnerableGitlawb
  • cpe:2.3:a:gitlawb:openclaude:*:*:*:*:*:*:*:* Versions before 0.5.1 Vulnerable ·Gitlawb

Remediation

  • Fix · CNA openclaude (Gitlawb) Fixed in 0.5.1
  • Fix · GHSA-m77w-p5jj-xmhg openclaude (npm) Fixed in 0.5.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42074
  2. 2026-10-03 Alias added: GHSA-m77w-p5jj-xmhg
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

Patch 2

Advisory 1

Other 1

  • TI-2026-27674 OpenClaude has Sandbox Bypass via Early-Exit Logic Flaw that Allows Path Traversal CVSS 3.1HIGH 8.4
  • TI-2026-30441 OpenClaude's MCP OAuth Callback: State Check Bypass via error Param Leads to DoS CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences