CVE-2026-32054 in OpenClaw
Summary
by MITRE • 03/21/2026
OpenClaw versions prior to 2026.2.25 contain a symlink traversal vulnerability in browser trace and download output path handling that allows local attackers to escape the managed temp root directory. An attacker with local access can create symlinks to route file writes outside the intended temp directory, enabling arbitrary file overwrite on the affected system.
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Analysis
by VulDB Data Team • 03/27/2026
The vulnerability identified as CVE-2026-32054 affects OpenClaw versions prior to 2026.2.25 and represents a critical symlink traversal flaw in the browser trace and download output path handling mechanisms. This vulnerability resides in the application's temporary directory management system where it fails to properly validate or sanitize file paths during write operations. The flaw allows local attackers to exploit the system's handling of symbolic links to bypass intended directory restrictions and write files outside the designated temporary root directory. Such a weakness fundamentally undermines the security boundaries that should isolate temporary file operations from the broader filesystem, creating a pathway for privilege escalation and persistent compromise.
The technical implementation of this vulnerability stems from inadequate path validation logic within the application's file handling routines. When OpenClaw processes browser traces or download operations, it creates temporary files in a managed root directory structure designed to contain all temporary operations. However, the software does not sufficiently verify the integrity of symbolic links present in the path resolution chain, allowing attackers to pre-create malicious symlinks that point to arbitrary locations on the filesystem. This type of vulnerability is classified as a path traversal issue under CWE-22, specifically manifesting as a weakness in file path handling where symbolic links are not properly resolved or validated against the intended security boundaries. The flaw operates at the intersection of improper input validation and insufficient access control mechanisms, creating a dangerous condition where legitimate file operations can be redirected through attacker-controlled symbolic links.
The operational impact of this vulnerability extends beyond simple file overwrite capabilities and represents a significant threat to system integrity and confidentiality. Local attackers who can execute code on the target system gain the ability to overwrite critical system files, configuration data, or user files with malicious content. This capability enables various attack vectors including privilege escalation, persistence mechanisms, and data corruption. The vulnerability is particularly dangerous because it requires minimal privileges to exploit and can be leveraged to create backdoors, modify system binaries, or corrupt important data structures. From an attack framework perspective, this vulnerability aligns with techniques described in the MITRE ATT&CK framework under the T1059 (Command and Scripting Interpreter) and T1546 (Event Triggered Execution) domains, where attackers can establish persistence through file modification attacks.
Mitigation strategies for CVE-2026-32054 must address both the immediate vulnerability and broader security posture considerations. The primary recommendation involves upgrading to OpenClaw version 2026.2.25 or later, which includes proper path validation and symlink resolution mechanisms. Organizations should also implement additional protective measures such as restricting write permissions to temporary directories, implementing proper file access controls, and monitoring for suspicious symlink creation patterns. System administrators should conduct thorough audits of existing temporary directories to identify and remove any existing malicious symlinks that could be exploited. The vulnerability demonstrates the importance of proper input validation and secure coding practices, particularly when dealing with temporary file operations and symbolic link handling. Security teams should also consider implementing automated monitoring solutions that can detect unauthorized symlink creation or file modification activities in temporary directories, as these activities often precede more serious exploitation attempts.