CVE-2026-15625 in GoClaw
Summary
by MITRE • 07/14/2026
A vulnerability was found in nextlevelbuilder GoClaw 3.11.3. Affected by this issue is the function ExecApprovalManager.CheckCommand of the file internal/tools/exec_approval.go. The manipulation results in incomplete blacklist. The attack can be executed remotely. The exploit has been made public and could be used.
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Analysis
by VulDB Data Team • 07/14/2026
The vulnerability identified in nextlevelbuilder GoClaw version 3.11.3 represents a critical security flaw within the ExecApprovalManager.CheckCommand function located in internal/tools/exec_approval.go. This issue constitutes a command execution vulnerability that arises from an incomplete blacklist implementation, fundamentally compromising the application's security controls. The weakness lies in the insufficient filtering mechanism that fails to properly validate or sanitize input parameters before executing system commands, creating a pathway for malicious actors to bypass intended security restrictions.
This vulnerability operates under the principle of command injection, where unauthorized commands can be executed within the application's operational context. The incomplete blacklist approach indicates that the system relies on a list of prohibited characters or patterns rather than implementing proper input validation or whitelisting mechanisms. Such an approach is inherently flawed as attackers can exploit various encoding techniques, alternative syntaxes, or bypass methods to circumvent the limited filter rules. The remote execution capability means that this vulnerability does not require physical access to the system and can be exploited over network connections, significantly expanding its attack surface and potential impact.
The exploitation of this vulnerability has been publicly demonstrated, indicating that threat actors have already developed working exploits that could be readily deployed against affected systems. This public availability of exploit code accelerates the risk profile considerably, as it removes the barrier to entry for potential attackers who may not possess advanced technical skills. The implications extend beyond simple unauthorized command execution, potentially allowing for full system compromise, data exfiltration, privilege escalation, or lateral movement within network environments where the application operates.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-78 (Improper Neutralization of Special Elements used in an OS Command) and represents a failure in input validation controls. The attack vector maps to ATT&CK technique T1059.001 (Command and Scripting Interpreter: PowerShell) and related execution techniques that leverage operating system command interfaces. Organizations running affected versions of GoClaw should immediately implement mitigations including input sanitization, proper command execution frameworks with parameterized queries, and network segmentation to limit potential impact. The vulnerability demonstrates the critical importance of robust input validation over simplistic blacklist approaches, particularly in applications handling user-supplied data that may be processed through system commands or shell interfaces.