CVE-2026-35570
HIGHOpenClaude has Sandbox Bypass via Early-Exit Logic Flaw that Allows Path Traversal
Title source: cnaDescription
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.
Scores
CVSS v3
8.4
EPSS
0.0001
EPSS Percentile
0.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Details
CWE
CWE-22
CWE-284
Status
published
Products (3)
gitlawb/openclaude
< 0.5.1
gitlawb/openclaude
0 - 0.5.1npm
Gitlawb/openclaude
< 0.5.1
Published
Apr 21, 2026
Tracked Since
Apr 21, 2026