CVE-2026-32585 in Mcp Bridge Plugin
Summary
by MITRE • 10/02/2026
Missing Authorization vulnerability in airano Airano MCP Bridge airano-mcp-bridge allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Airano MCP Bridge: from n/a through 2.11.0.
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Analysis
by VulDB Data Team • 10/02/2026
The identified vulnerability within the Airano MCP Bridge, specifically affecting versions up to and including 2.11.0, represents a critical failure in access control mechanisms that allows unauthorized actors to exploit incorrectly configured security levels. This flaw is fundamentally categorized under CWE-862, which denotes Missing Authorization, indicating that the software fails to properly verify whether an authenticated user has the necessary permissions to perform specific actions or access certain resources. In the context of Model Context Protocol (MCP) bridges, such as Airano MCP Bridge, these components often serve as intermediaries between large language models and external tools or data sources. Consequently, a breakdown in authorization logic can lead to severe security implications, including unauthorized data exfiltration, manipulation of model outputs through illicit tool invocation, or complete compromise of the underlying system integrity.
From an operational perspective, this vulnerability enables attackers who have obtained valid credentials for lower-privilege accounts to escalate their privileges or access sensitive functionalities that should be restricted to administrators or specific roles. The term incorrectly configured access control security levels suggests that while some level of authentication may be present, the subsequent authorization checks are either absent, bypassable, or misconfigured in a way that does not enforce least privilege principles effectively. This allows malicious users to interact with backend systems, execute commands, or retrieve confidential information without proper oversight. The impact extends beyond simple data leakage; it can result in service disruption if an attacker manipulates the bridge's configuration or triggers unintended side effects through unauthorized API calls.
In terms of threat modeling and industry standards, this vulnerability aligns closely with MITRE ATT&CK technique T1078, Valid Accounts, particularly when combined with privilege escalation tactics where attackers leverage valid credentials to bypass security controls that should restrict their actions. It also relates to CWE-269, Improper Privilege Management, as the core issue lies in the system's inability to correctly assign and enforce privileges based on user roles or contexts. The absence of robust authorization checks means that the bridge does not adequately validate the intent behind each request against a defined policy matrix, leaving it susceptible to abuse by any entity with network access and basic authentication credentials.
To mitigate this vulnerability, immediate action is required to update the Airano MCP Bridge software to version 2.11.1 or later, where these authorization flaws have been addressed in subsequent releases. Organizations relying on older versions must implement compensating controls such as strict firewall rules to limit network access to only trusted IP addresses and enforce multi-factor authentication for all administrative interfaces. Additionally, security teams should conduct a thorough audit of current access control configurations within the MCP bridge environment to ensure that role-based access control policies are correctly defined and enforced. Regular penetration testing focused on authorization bypass scenarios is recommended to identify any residual misconfigurations before they can be exploited in production environments.