CVE-2026-32026 in OpenClaw
Summary
by MITRE • 03/20/2026
OpenClaw versions prior to 2026.2.24 contain an improper path validation vulnerability in sandbox media handling that allows absolute paths under the host temporary directory outside the active sandbox root. Attackers can exploit this by providing malicious media references to read and exfiltrate arbitrary files from the host temporary directory through attachment delivery mechanisms.
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Analysis
by VulDB Data Team • 03/25/2026
The vulnerability identified as CVE-2026-32026 affects OpenClaw versions prior to 2026.2.24 and represents a critical improper path validation flaw within the sandbox media handling component. This weakness resides in how the system processes media references and validates file paths during sandbox operations, creating a significant security gap that undermines the intended isolation properties of the sandbox environment. The vulnerability specifically targets the temporary directory handling mechanism, where absolute paths can bypass sandbox restrictions and access files outside the designated sandbox root.
The technical implementation of this flaw stems from inadequate input validation and path sanitization within the media processing pipeline. When OpenClaw processes media attachments or references, it fails to properly validate whether the provided file paths are properly contained within the designated sandbox boundaries. This allows attackers to craft malicious media references that contain absolute paths pointing to the host temporary directory. The vulnerability operates at the intersection of path traversal and sandbox escape techniques, where the system's path validation logic does not adequately distinguish between legitimate sandboxed paths and potentially malicious absolute paths that could traverse outside the intended execution environment.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the capability to read arbitrary files from the host temporary directory through legitimate attachment delivery mechanisms. This creates a vector for data exfiltration where attackers can leverage the sandbox's media handling functionality to access sensitive files that may contain credentials, configuration data, or other confidential information. The attack surface is particularly concerning given that many temporary directories contain files with elevated privileges or sensitive data that could be exploited for further compromise. The vulnerability's exploitation requires minimal privileges and can be executed through standard media attachment delivery channels, making it particularly dangerous in environments where users interact with external media or file attachments.
Security mitigations for this vulnerability should focus on implementing robust path validation mechanisms that enforce strict containment policies for all file operations within the sandbox environment. The recommended approach includes implementing comprehensive input sanitization that strips or rejects absolute paths and enforces relative path resolution within the designated sandbox boundaries. Organizations should also consider implementing additional protective measures such as mandatory sandbox root path validation, file access logging, and privilege separation mechanisms that prevent the sandbox from accessing host directories. This vulnerability aligns with CWE-22 Path Traversal and CWE-73 Path Traversal, and represents a clear violation of the principle of least privilege in sandboxed environments. From an ATT&CK framework perspective, this vulnerability maps to T1059 Command and Scripting Interpreter and T1566 Phishing, as it enables attackers to escalate privileges through file-based delivery mechanisms. The remediation process requires immediate patching to OpenClaw version 2026.2.24 or later, combined with network segmentation and monitoring of suspicious file access patterns within temporary directories to prevent exploitation attempts.