CVE-2026-10617 in GoClaw
Summary
by MITRE • 06/03/2026
A security vulnerability has been detected in nextlevelbuilder GoClaw up to 3.11.3. This affects the function resolveAuth of the file internal/http/auth.go of the component Webhook Verification Handler. The manipulation leads to missing authentication. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The project tagged the reported issue as bug.
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Analysis
by VulDB Data Team • 06/03/2026
The security vulnerability identified in nextlevelbuilder GoClaw version 3.11.3 and earlier represents a critical authentication bypass flaw within the webhook verification handler component. This vulnerability resides in the resolveAuth function located in internal/http/auth.go, where insufficient validation mechanisms fail to properly authenticate incoming webhook requests. The flaw allows unauthorized actors to bypass the intended authentication controls, potentially granting them access to systems or data that should remain protected. The vulnerability has been publicly disclosed and is actively being exploited, making it particularly dangerous for organizations that rely on this software for their webhook processing infrastructure. The remote exploitation capability means that attackers can leverage this vulnerability from any location without requiring physical access to the target system, significantly expanding the attack surface and potential impact.
The technical implementation of this vulnerability stems from inadequate input validation and authentication logic within the webhook verification handler. When the resolveAuth function processes incoming requests, it fails to properly validate the authentication tokens or signatures that should be present in webhook payloads. This weakness creates a path for malicious actors to craft forged webhook requests that appear legitimate to the system, effectively circumventing the security controls that were designed to protect against unauthorized access. The vulnerability can be classified under CWE-287 which specifically addresses improper authentication issues, and it aligns with ATT&CK technique T1078.101 which covers valid accounts for privilege escalation. The flaw essentially removes the authentication check that should occur during webhook processing, allowing any attacker who can send requests to the webhook endpoint to potentially gain unauthorized access to the system's resources.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it can lead to complete system compromise when combined with other attack vectors. Organizations using GoClaw for webhook processing may experience unauthorized data access, potential data exfiltration, or even complete system takeover if the webhook handler is connected to sensitive backend systems. The vulnerability affects the entire webhook verification process, meaning that any legitimate webhook traffic could be exploited if attackers can determine the correct endpoint structure. This creates a cascading effect where the compromise of one webhook endpoint could potentially lead to broader system infiltration. The public disclosure of this exploit means that security researchers and malicious actors alike have access to the attack methodology, increasing the probability of successful exploitation across affected systems.
Organizations should immediately implement mitigations including updating to the latest version of GoClaw where this vulnerability has been patched, implementing additional network-level controls such as firewall rules that restrict access to webhook endpoints, and conducting comprehensive security assessments of all webhook handlers within their infrastructure. Network segmentation should be considered to isolate webhook processing systems from critical internal resources, while additional authentication layers such as API keys or token-based verification should be implemented as temporary compensating controls. The vulnerability demonstrates the importance of proper authentication implementation and highlights the need for thorough security testing of all components that handle external communications. Security teams should also monitor for exploitation attempts through network traffic analysis and implement intrusion detection systems that can identify suspicious webhook activity patterns. Regular security audits of third-party components and dependency management practices should be enhanced to prevent similar issues in other software components within the organization's attack surface.