A security bypass vulnerability in Network-AI ClaudeHookBridge allows authenticated attackers to circumvent access controls via input truncation.

This vulnerability, classified as an interpretation conflict (CWE-436), occurs due to improper input processing in the ClaudeHookBridge. An attacker with low privileges can perform a bypass of configured deny-patterns by utilizing input truncation techniques.

With a CVSS score of 8.8, this vulnerability poses a severe risk to network integrity. Successful exploitation allows an authenticated user to bypass security policies, potentially leading to unauthorized data access or lateral movement within the network, which could result in severe reputational and operational damage.

Immediate Action: Upgrade Network-AI to version 5.15.1 or later to implement the corrected input validation logic.

Proactive Monitoring: Review application access logs for anomalous patterns, specifically looking for input that may be intentionally truncated or malformed to trigger policy bypasses.

Compensating Controls: Implement strict input validation at the Web Application Firewall (WAF) layer to block requests that appear to use truncation techniques to evade existing security rules.

Public Exploit Available: No (unknown)

The presence of a proof-of-concept increases the urgency for remediation. Administrators should verify the current version of the Network-AI software and apply the update to version 5.15.1 immediately to close this security gap.