GHSA-VP62-R36R-9XQP Claude Code: Sandbox Escape via Symlink Following Allows Arbitrary File Write Outside Workspace

Claude Code's sandbox did not prevent sandboxed processes from creating symlinks pointing to locations outside the workspace. When Claude Code subsequently wrote to a path within such a symlink, its unsandboxed process followed the symlink and wrote to the target location outside the workspace...

GHSA-5CWG-9F6J-9JVX Claude Code: Insecure System-Wide Configuration Loading Enables Local Privilege Escalation on Windows

On Windows, Claude Code loaded system-wide default configuration from C:\ProgramData\ClaudeCode\managed-settings.json without validating directory ownership or access permissions. Because the ProgramData directory is writable by non-administrative users by default and the ClaudeCode subdirectory...

Ruby LSP has arbitrary code execution through branch setting

Summary The rubyLsp.branch VS Code workspace setting was interpolated without sanitization into a generated Gemfile, allowing arbitrary Ruby code execution when a user opens a project containing a malicious .vscode/settings.json. Other editors that support workspace setting that get automatically...

GHSA-C4R5-FXQW-VH93 Ruby LSP has arbitrary code execution through branch setting

Summary The rubyLsp.branch VS Code workspace setting was interpolated without sanitization into a generated Gemfile, allowing arbitrary Ruby code execution when a user opens a project containing a malicious .vscode/settings.json. Other editors that support workspace setting that get automatically...

PT-2026-28598

Name of the Vulnerable Software and Affected Versions ruby-lsp versions prior to 0.10.2 ruby-lsp gem versions prior to 0.26.9 Description The rubyLsp.branch VS Code workspace setting was used in generating a Gemfile without proper sanitization, potentially allowing arbitrary Ruby code execution...

Ruby LSP has arbitrary code execution through branch setting

Summary The rubyLsp.branch VS Code workspace setting was interpolated without sanitization into a generated Gemfile, allowing arbitrary Ruby code execution when a user opens a project containing a malicious .vscode/settings.json. Other editors that support workspace setting that get automatically...

PT-2026-26297

Name of the Vulnerable Software and Affected Versions Claude Code versions prior to 2.1.53 Description Claude Code is an agentic coding tool that experienced a loading order issue in its settings loader. The software resolved the permission mode from settings files, such as the...

PT-2026-20516

MajorDoMo aka Major Domestic Module is vulnerable to unauthenticated remote code execution through supply chain compromise via update URL poisoning. The saverestore module exposes its admin method through the /objects/?module=saverestore endpoint without authentication because it uses gr'mode'...

GHSA-FF64-7W26-62RF Claude Code has Sandbox Escape via Persistent Configuration Injection in settings.json

Claude Code's bubblewrap sandboxing mechanism failed to properly protect the .claude/settings.json configuration file when it did not exist at startup. While the parent directory was mounted as writable and .claude/settings.local.json was explicitly protected with read-only constraints,...

Claude Code has Sandbox Escape via Persistent Configuration Injection in settings.json

Claude Code's bubblewrap sandboxing mechanism failed to properly protect the .claude/settings.json configuration file when it did not exist at startup. While the parent directory was mounted as writable and .claude/settings.local.json was explicitly protected with read-only constraints,...

GHSA-4Q92-RFM6-2CQX Claude Code has Permission Deny Bypass Through Symbolic Links

Claude Code failed to strictly enforce deny rules configured in settings.json when accessing files through symbolic links. If a user explicitly denied Claude Code access to a file such as /etc/passwd and Claude Code had access to a symbolic link pointing to that file, it was possible for Claude...

Claude Code has Permission Deny Bypass Through Symbolic Links

Claude Code failed to strictly enforce deny rules configured in settings.json when accessing files through symbolic links. If a user explicitly denied Claude Code access to a file such as /etc/passwd and Claude Code had access to a symbolic link pointing to that file, it was possible for Claude...

Claude Code Vulnerable to Command Injection via Piped sed Command Bypasses File Write Restrictions

Claude Code failed to properly validate commands using piped sed operations with the echo command, allowing attackers to bypass file write restrictions. This vulnerability enabled writing to sensitive directories like the .claude folder and paths outside the project scope. Exploiting this require...

GHSA-66Q4-VFJG-2QHH Claude Code Vulnerable to Command Injection via Directory Change Bypasses Write Protection

Claude Code failed to properly validate directory changes when combined with write operations to protected folders. By using the cd command to navigate into sensitive directories like .claude, it was possible to bypass write protection and create or modify files without user confirmation. Reliabl...

PT-2026-6858

Claude Code's bubblewrap sandboxing mechanism failed to properly protect the .claude/settings.json configuration file when it did not exist at startup. While the parent directory was mounted as writable and .claude/settings.local.json was explicitly protected with read-only constraints,...

PT-2026-6853

Claude Code failed to properly validate directory changes when combined with write operations to protected folders. By using the cd command to navigate into sensitive directories like .claude, it was possible to bypass write protection and create or modify files without user confirmation. Reliabl...

PT-2026-6850

Claude Code failed to strictly enforce deny rules configured in settings.json when accessing files through symbolic links. If a user explicitly denied Claude Code access to a file such as /etc/passwd and Claude Code had access to a symbolic link pointing to that file, it was possible for Claude...

GHSA-QGQW-H4XQ-7W8W Claude Code has a Command Injection in find Command Bypasses User Approval Prompt

Due to an error in command parsing, it was possible to bypass the Claude Code confirmation prompt to trigger execution of untrusted commands through the find command. Reliably exploiting this required the ability to add untrusted content into a Claude Code context window. Users on standard Claude...

Claude Code has a Command Injection in find Command Bypasses User Approval Prompt

Due to an error in command parsing, it was possible to bypass the Claude Code confirmation prompt to trigger execution of untrusted commands through the find command. Reliably exploiting this required the ability to add untrusted content into a Claude Code context window. Users on standard Claude...

Claude Code has a Path Restriction Bypass via ZSH Clobber which Allows Arbitrary File Writes

Due to a Bash command validation flaw in parsing ZSH clobber syntax, it was possible to bypass directory restrictions and write files outside the current working directory without user permission prompts. Exploiting this required the user to use ZSH and the ability to add untrusted content into a...