CVE-2026-15618 in clawlet
Summary
by MITRE • 07/14/2026
A security flaw has been discovered in mosaxiv clawlet up to 0.2.10. The affected element is the function guardExecCommand of the file tools/tool_exec.go of the component exec Safety Guard. The manipulation results in protection mechanism failure. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The reported GitHub issue was closed with the label "not planned".
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Analysis
by VulDB Data Team • 07/14/2026
The security vulnerability identified in mosaxiv clawlet version 0.2.10 represents a critical flaw within the exec Safety Guard component that undermines fundamental security protections. This vulnerability specifically targets the guardExecCommand function located in tools/tool_exec.go, which serves as a crucial gatekeeping mechanism for command execution within the application. The flaw manifests as a protection mechanism failure that allows unauthorized command injection attempts, potentially enabling attackers to execute arbitrary code on affected systems.
The technical nature of this vulnerability stems from insufficient input validation and sanitization within the guardExecCommand function, creating an attack surface where malicious inputs can bypass security controls. This weakness enables remote exploitation without requiring local system access or elevated privileges, making it particularly dangerous as it can be leveraged by attackers from external networks. The vulnerability's classification aligns with CWE-78, which addresses improper neutralization of special elements used in OS commands, and represents a direct violation of the principle of least privilege that should govern all security controls.
The operational impact of this vulnerability extends beyond simple command execution capabilities, as it fundamentally compromises the integrity of the application's security posture. Attackers can exploit this flaw to perform unauthorized system operations including but not limited to data exfiltration, system reconnaissance, privilege escalation, and persistent access establishment. The fact that public exploits have been released and are actively available for use significantly amplifies the risk level, as it eliminates the need for advanced technical skills or custom development to conduct attacks against vulnerable installations.
The remediation approach should prioritize immediate patching of affected versions and implementation of comprehensive input validation measures within the guardExecCommand function. Organizations must also consider implementing network-level protections such as firewall rules and intrusion detection systems to monitor for exploitation attempts. Additionally, regular security assessments and code reviews focusing on command execution mechanisms should be conducted to identify similar vulnerabilities throughout the application's codebase. The vulnerability demonstrates the critical importance of secure coding practices and proper input sanitization in preventing privilege escalation attacks that could lead to complete system compromise.
This issue exemplifies the broader challenge of maintaining security in open source projects where community contributions may not always undergo rigorous security review processes. The closure of the reported GitHub issue with "not planned" label indicates a lack of response from maintainers, leaving users vulnerable and highlighting the need for community-driven security monitoring and alternative mitigation strategies when upstream fixes are unavailable. Organizations relying on this software should implement additional defensive measures including application whitelisting, sandboxing mechanisms, and comprehensive monitoring to detect potential exploitation attempts. The vulnerability serves as a reminder of the critical importance of maintaining up-to-date security patches and the risks associated with using software components that lack active maintenance or security response protocols.