CVE-2026-6586: SuperAGI Auth Bypass Vulnerability

CVE-2026-6586 Overview

A vulnerability was identified in TransformerOptimus SuperAGI up to version 0.0.14 that allows remote attackers to bypass authorization controls. The vulnerability affects the get_budget and update_budget functions within the superagi/controllers/budget.py file of the Budget Endpoint component. This authorization bypass vulnerability (CWE-285) enables attackers to manipulate budget-related operations without proper authorization, potentially compromising the integrity of the AI agent orchestration platform.

Critical Impact

Remote attackers can bypass authorization controls to access and modify budget configurations, potentially leading to unauthorized resource allocation and system manipulation in SuperAGI deployments.

Affected Products

• TransformerOptimus SuperAGI versions up to and including 0.0.14
• SuperAGI Budget Endpoint component (superagi/controllers/budget.py)
• Deployments utilizing the get_budget and update_budget API functions

Discovery Timeline

• April 20, 2026 - CVE-2026-6586 published to NVD
• April 22, 2026 - Last updated in NVD database

Technical Details for CVE-2026-6586

Vulnerability Analysis

This authorization bypass vulnerability exists in the Budget Endpoint component of TransformerOptimus SuperAGI. The affected functions get_budget and update_budget in superagi/controllers/budget.py fail to properly validate user authorization before processing requests. This improper authorization (CWE-285) allows authenticated users to access or modify budget resources belonging to other users or system components without proper permission checks.

The vulnerability is remotely exploitable over the network and requires low-privilege authentication to exploit. An attacker with basic access to the SuperAGI platform can leverage this flaw to view confidential budget information or modify budget allocations they should not have access to.

Root Cause

The root cause of this vulnerability is improper authorization validation in the budget management controller. The get_budget and update_budget functions do not adequately verify that the requesting user has the appropriate permissions to access or modify the specified budget resource. This represents a broken access control pattern where the application fails to enforce proper authorization boundaries between users and resources.

Attack Vector

The attack can be launched remotely over the network by any authenticated user with low-privilege access to the SuperAGI application. The attacker sends crafted HTTP requests to the Budget Endpoint, targeting the vulnerable get_budget or update_budget functions. By manipulating request parameters, the attacker can access or modify budget data belonging to other users or administrative components.

The vulnerability does not require user interaction to exploit. An exploit is publicly available as documented in the GitHub Gist PoC, which demonstrates the authorization bypass technique. The vendor was contacted about this disclosure but did not respond.

Detection Methods for CVE-2026-6586

Indicators of Compromise

• Unexpected access patterns to the /budget API endpoints from unauthorized users
• Audit logs showing budget queries or modifications for resources the requesting user should not access
• Anomalous activity in superagi/controllers/budget.py function calls with mismatched user-to-resource relationships
• Increased API calls to budget endpoints from single authenticated sessions

Detection Strategies

• Monitor API access logs for the Budget Endpoint (/budget routes) for unauthorized resource access attempts
• Implement authorization audit logging to track all get_budget and update_budget function calls with user context
• Deploy application-layer intrusion detection to identify parameter manipulation attempts targeting budget resources
• Configure alerting for cross-user budget access patterns that violate expected authorization boundaries

Monitoring Recommendations

• Enable verbose logging for the SuperAGI Budget Endpoint component
• Implement real-time monitoring of API authentication and authorization events
• Review audit trails for budget-related operations on a regular basis
• Configure SIEM rules to correlate budget API access with user authorization levels

How to Mitigate CVE-2026-6586

Immediate Actions Required

• Restrict network access to SuperAGI deployments using firewall rules or network segmentation
• Implement additional authentication controls at the reverse proxy or API gateway level
• Review and audit all budget-related operations since deployment for signs of exploitation
• Consider disabling or restricting access to the Budget Endpoint until a patch is available

Patch Information

At the time of publication, the vendor (TransformerOptimus) has not responded to disclosure attempts and no official patch is available. Organizations using SuperAGI should monitor the VulDB advisory and the official SuperAGI repository for updates. The GitHub Gist PoC provides technical details that may inform custom mitigation approaches.

Workarounds

• Implement custom authorization middleware to validate user permissions before budget operations reach the vulnerable controller
• Deploy API gateway rules to enforce strict authorization checks on Budget Endpoint routes
• Restrict the Budget Endpoint to administrative users only until a proper fix is released
• Consider implementing a custom patch to add authorization validation in superagi/controllers/budget.py

# Example: Restrict Budget Endpoint access via nginx
location /budget {
    # Allow only trusted admin IPs until patch is available
    allow 10.0.0.0/8;
    deny all;
    
    # Add additional authentication header requirement
    if ($http_x_admin_token = "") {
        return 403;
    }
    
    proxy_pass http://superagi_backend;
}