Description

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.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "6.5",
  "pubDate": "2026-10-02T15:17:09.370Z",
  "pubdate": "2026-10-02T15:17:09.370Z",
  "executiveSummary": "The Airano MCP Bridge is susceptible to a missing authorization vulnerability, classified under improper access control configurations. This security flaw allows unauthorized entities to bypass security levels, potentially granting access to sensitive functions or data that should be restricted based on authorization policies.\nThe vulnerability affects all versions of Airano MCP Bridge from n/a through 2.11.0. The primary impact involves the erosion of the principle of least privilege, allowing an attacker to execute operations or access resources without the requisite permissions.\nRisk implications are significant, as successful exploitation enables unauthorized actors to interact with the bridge's capabilities, potentially leading to unauthorized data retrieval, system manipulation, or unauthorized administrative actions. The vulnerability does not explicitly require complex authentication, suggesting that the application fails to validate the authorization context of incoming requests before processing them.\nSecurity teams should prioritize patching or implementing compensating controls to enforce strict authorization checks at the component entry points.",
  "technicalDetails": "The vulnerability originates from a failure in the application's access control logic within the Airano MCP Bridge component. Specifically, the implementation lacks the necessary authorization checks (Missing Authorization) required to validate the requester's identity or permissions before processing requests. This results in incorrectly configured access control security levels, where protected functions become accessible to unauthenticated or unauthorized users.\nThe root cause is a fundamental design flaw in the request handling architecture where the application assumes that any request reaching the bridge interface is authorized, or it neglects to verify if the requester possesses the appropriate security level defined for the requested operation.\nExploitation involves an attacker crafting requests directed at the bridge's API endpoints or interface functions that should be restricted. Because the backend fails to perform proper authorization verification, it interprets these requests as legitimate and executes the requested actions. The attack flow typically follows: 1) Identification of the target interface within the Airano MCP Bridge. 2) Crafting of unauthorized requests aimed at sensitive operations. 3) Submission of these requests without proper credentials or authorization headers. 4) The application processes the request, bypassing the security level check, and performs the intended action with the privileges of the system itself.\nThis vulnerability is particularly dangerous because it bypasses architectural security boundaries. The affected versions (n/a through 2.11.0) lack the necessary middleware or function-level decorators required to enforce authorization policies. Consequently, the application operates in a state where security is only as strong as the network perimeter, and any entity capable of reaching the bridge interface can potentially execute administrative or sensitive functionality.\nPost-exploitation impact is severe, as the attacker effectively operates with escalated privileges. Depending on the nature of the bridge functions exposed, this could lead to full system compromise, unauthorized data exfiltration, or denial of service by triggering destructive commands that the attacker should not have been authorized to initiate. The absence of audit trails for these unauthorized requests may also complicate incident response and forensics efforts."
}