HIGHCVE-2026-35570Published Modified CNA GitHub_M
CVE-2026-35570: OpenClaude has Sandbox Bypass via Early-Exit Logic Flaw that Allows Path Traversal
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.
Metrics
- CVSS v3.1
- 8.4
- Severity
- HIGH
- Fixed in
- —
- Affected Products
- 1
Affected packages
- Gitlawb / openclaude< 0.5.1
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N