CVE-2026-15626 in GoClaw
Summary
by MITRE • 07/14/2026
A vulnerability was determined in nextlevelbuilder GoClaw 3.13.3-beta.3. This affects the function writeFile of the file internal/providers/acp/tool_bridge.go of the component ACP ToolBridge Workspace Handler. This manipulation causes path traversal. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.
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Analysis
by VulDB Data Team • 07/14/2026
The vulnerability identified in nextlevelbuilder GoClaw 3.13.3-beta.3 represents a critical path traversal flaw within the ACP ToolBridge Workspace Handler component. This security weakness resides in the writeFile function located in internal/providers/acp/tool_bridge.go, where improper input validation allows attackers to manipulate file system operations through crafted malicious inputs. The vulnerability enables unauthorized access to sensitive system resources and potentially full system compromise when exploited.
The technical implementation of this flaw stems from insufficient sanitization of user-supplied data within the file writing process. When the writeFile function processes external inputs without proper validation or encoding, it fails to restrict directory traversal sequences such as ../ or ..\ that could redirect file operations outside intended directories. This weakness allows attackers to write files to arbitrary locations on the target system, potentially overwriting critical system files or injecting malicious code into the application's execution environment.
From an operational perspective, this vulnerability poses significant risks to organizations using GoClaw 3.13.3-beta.3 as it enables remote exploitation without requiring authentication or prior access to the system. The public disclosure of exploit codes means that malicious actors can readily leverage this weakness to gain unauthorized control over affected systems. The path traversal capability extends beyond simple file reading to include file creation, modification, and deletion operations, providing attackers with extensive post-exploitation capabilities.
Security professionals should note that this vulnerability aligns with CWE-22 Path Traversal and follows patterns commonly associated with the attack technique described in MITRE ATT&CK framework under T1059 Command and Scripting Interpreter. The remote exploitability of this flaw places it within the high-risk category as defined by industry security standards, particularly when considering that attackers can leverage publicly available exploit code to compromise systems. Organizations should prioritize immediate patching or mitigation strategies to prevent unauthorized access through this attack vector.
The impact of this vulnerability extends beyond simple data exposure to potentially enable complete system compromise. Attackers could use the path traversal capability to upload backdoor files, modify critical application components, or establish persistent access to affected systems. The combination of remote exploitability and public disclosure creates an urgent security concern that requires immediate attention from system administrators and security teams responsible for maintaining GoClaw installations.
Mitigation strategies should include implementing proper input validation and sanitization within the writeFile function, restricting file operations to predefined safe directories, and deploying network-level controls to limit access to vulnerable components. Organizations should also consider implementing application whitelisting policies and monitoring for suspicious file system activities that may indicate exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other components of the application stack.