CVE-2026-30314: Ridvay Code Command Injection Vulnerability

CVE-2026-30314 Overview

Ridvay Code's command auto-approval module contains a critical OS command injection vulnerability (CWE-78) that renders its whitelist security mechanism completely ineffective. The system relies on fragile regular expressions to parse command structures; while it attempts to intercept dangerous operations, it fails to account for standard Shell command substitution syntax—specifically $(...) and backticks. An attacker can construct a command such as git log --grep="$(malicious_command)", forcing the system to misidentify it as a safe git operation and automatically approve it. The underlying Shell prioritizes the execution of the malicious code injected within the arguments, resulting in Remote Code Execution without any user interaction.

Critical Impact

This vulnerability allows unauthenticated attackers to achieve Remote Code Execution by bypassing the command whitelist through Shell command substitution, with no user interaction required.

Affected Products

• Ridvay Code (command auto-approval module)

Discovery Timeline

• 2026-03-31 - CVE CVE-2026-30314 published to NVD
• 2026-04-01 - Last updated in NVD database

Technical Details for CVE-2026-30314

Vulnerability Analysis

This command injection vulnerability arises from insufficient input validation in Ridvay Code's command auto-approval module. The module is designed to maintain a whitelist of safe commands that can be executed automatically without user confirmation. However, the regular expression-based parsing logic fails to properly handle Shell command substitution constructs.

When a user submits a command for execution, the auto-approval module evaluates it against predefined patterns to determine if it matches a "safe" operation. The vulnerability exists because the regex validation examines only the surface-level command structure without recursively parsing nested command substitutions. This creates a dangerous disconnect between what the validation logic perceives and what the Shell actually executes.

Root Cause

The root cause stems from the fundamental architectural flaw in how the command parser handles input validation. The whitelist mechanism uses static regular expression patterns that match command prefixes (such as git log, git status, etc.) without understanding Shell semantics.

Shell command substitution using $(...) or backtick notation causes the Shell to execute the enclosed command first and substitute its output into the parent command. The auto-approval module's regex engine processes the entire string as a literal match against safe patterns, unaware that the Shell will interpret embedded substitutions as executable code. This creates a classic security bypass where the validation layer and execution layer have fundamentally different interpretations of the same input.

Attack Vector

The attack exploits the network-accessible command execution interface in Ridvay Code. An attacker can craft a seemingly benign command that passes the whitelist validation but contains embedded malicious code within command substitution syntax.

The exploitation flow involves constructing a command that appears to match a whitelisted pattern (e.g., git operations) while embedding arbitrary commands within the arguments. For example, using git log --grep="$(id)" would be interpreted by the validator as a legitimate git log command with a search pattern. However, when the Shell processes this command, it first executes the id command (or any arbitrary payload), then substitutes the output into the git command.

This attack requires no authentication and no user interaction, as the malicious command is automatically approved based on its superficial appearance. The attacker gains the ability to execute arbitrary system commands with the privileges of the Ridvay Code process, leading to full system compromise through data exfiltration, lateral movement, or persistence establishment.

Detection Methods for CVE-2026-30314

Indicators of Compromise

• Unexpected process execution chains originating from the Ridvay Code process, particularly subshells or commands not typically associated with approved operations
• Command execution logs containing suspicious patterns with $(, backticks, or nested command structures
• Unusual network connections or file system modifications initiated by the Ridvay Code service account
• Evidence of reconnaissance commands (such as id, whoami, uname, or env) appearing in Shell history or execution logs

Detection Strategies

• Implement application-level logging to capture the full command string before and after Shell interpretation to identify discrepancies
• Deploy behavioral analysis rules to detect unexpected child process spawning from the Ridvay Code application
• Monitor for command execution patterns containing Shell metacharacters within quoted arguments

Monitoring Recommendations

• Enable verbose logging for all command auto-approval decisions, capturing both the original input and the approval rationale
• Configure SIEM rules to alert on command execution events containing command substitution syntax ($(, backticks)
• Establish baseline behavior for the Ridvay Code process and alert on deviations such as network connections to unusual destinations or access to sensitive files

How to Mitigate CVE-2026-30314

Immediate Actions Required

• Disable the command auto-approval feature until a patch is available or proper validation can be implemented
• Implement strict allowlisting at the Shell level that prevents command substitution entirely within approved command patterns
• Review execution logs for any evidence of exploitation attempts using command substitution patterns
• Consider running the Ridvay Code service in a sandboxed or containerized environment with minimal privileges

Patch Information

No official patch information is currently available. Monitor the Ridvay Security Blog and the GitHub Issue Discussion for updates on security fixes and remediation guidance.

Workarounds

• Disable automatic command approval and require manual user confirmation for all command executions
• Implement a secondary validation layer that explicitly rejects any commands containing Shell metacharacters such as $, backticks, semicolons, or pipe characters
• Use Shell-safe execution methods that do not invoke a full Shell interpreter, passing arguments as arrays rather than concatenated strings
• Apply network segmentation to limit the potential impact of successful exploitation

For environments where the auto-approval feature is critical, consider implementing a defense-in-depth approach by sanitizing all command arguments before validation:

# Example: Strip command substitution syntax before processing
# This is a temporary workaround - await official patch
sanitized_command=$(echo "$user_input" | sed 's/\$([^)]*)/BLOCKED/g; s/`[^`]*`/BLOCKED/g')