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High · 8.4 Public exploit CVE-2026-35570 EUVD-2026-23988GHSA-m6rx-7pvw-2f73

OpenClaude has Sandbox Bypass via Early-Exit Logic Flaw that Allows Path Traversal

Published Apr 20, 2026 · Updated Apr 21, 2026 · Assigned by GitHub_M

Vendor: Gitlawb Product: openclaude Package: @gitlawb/openclaude Ecosystem: npm

Description

OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Versions prior to 0.5.1 have a logic flaw in `bashToolHasPermission()` inside `src/tools/BashTool/bashPermissions.ts`. When the sandbox auto-allow feature is active and no explicit deny rule is configured, the function returns an `allow` result immediately — before the path constraint filter (`checkPathConstraints`) is ever evaluated. This allows commands containing path traversal sequences (e.g., `../../../../../etc/passwd`) to bypass directory restrictions entirely. Version 0.5.1 contains a patch for the issue.

Affected products

VendorProductAffectedFixed
Gitlawb openclaude < 0.5.1 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
npm @gitlawb/openclaude < 0.5.1 0.5.1 GHSA-m6rx-7pvw-2f73

References