External risk intelligence

Chartbrew Administrative Dashboard Unauthenticated Access

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-86005

Chartbrew is a web-based application designed to connect to databases and APIs for data visualization. The vulnerable component is an administrative dashboard endpoint that is reachable over the network. Because this is a web application commonly deployed to provide data dashboards, it is likely to be accessible via a web server or reverse proxy, placing the management interface within the reachable attack surface.

Missing Authentication

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory concerns a vulnerability in Chartbrew, an open-source web application used for data visualization. An unauthenticated attacker could potentially access an administrative dashboard if Redis and BullMQ are enabled and not otherwise protected, allowing them to view sensitive job information or alter queue processing. The main concern is confirming relevance and exposure.

  • Unprotected admin dashboard exposes queue management.
  • Affects data confidentiality, integrity, or availability.
  • Confirm if this application is in use.

Attack Path

How an attacker could exploit the issue

An attacker can reach the administrative dashboard of Chartbrew by accessing a specific URL, provided that Redis and BullMQ are enabled and no independent blocking mechanism is in place. This dashboard, intended for managing queues, inadvertently lacks an authentication check, exposing its functionality directly to unauthenticated users. The vulnerability allows an attacker to potentially view sensitive job data and alter queue processing, impacting the application's confidentiality, integrity, and availability.

  • Unauthenticated network access required.
  • Dashboard route on Chartbrew instance.
  • Information disclosure and manipulation.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could expose sensitive job payloads and log contents from Chartbrew's queue management interface when Redis and BullMQ are enabled and not protected by a reverse proxy. An unauthenticated attacker could view job details, and potentially retry, delete, or otherwise alter queue processing, impacting data confidentiality, integrity, or availability.

  • Job payloads and logs at risk.
  • Reachable via network without authentication.
  • May affect data confidentiality, integrity, availability.

Operational Fix

Recommended remediation, mitigation, and detection steps

Application owners and infrastructure teams are likely responsible for securing Chartbrew instances, particularly those with enabled Redis and BullMQ. The immediate first step is to locate all Chartbrew deployments, assess their exposure and business criticality, identify the specific owner, and then plan remediation based on the identified risk.

  • Own issue: Application and infrastructure teams.
  • Verify first: Chartbrew instances and reachability.
  • Action: Plan and execute remediation.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is Chartbrew and how does it use queues?

Chartbrew is an open-source tool for visualizing data by connecting directly to databases and APIs. It uses Redis and the BullMQ library to manage background tasks or jobs. These queues help the application process data-heavy operations in the background, with an administrative dashboard called Bull Board providing a visual way to monitor and manage these tasks.

What is the vulnerability in CVE-2026-86005?

The flaw is identified as CWE-306, which signifies a missing authentication check. In older versions of Chartbrew, the administrative interface for managing queues was exposed without requiring any login credentials. This means the application trusted that only authorized users could reach the dashboard, inadvertently allowing anyone with network access to the endpoint to interact with it.

How does an attacker trigger this vulnerability?

An attacker triggers this by navigating to the /apps/queues path on a Chartbrew instance. This only works if Redis and BullMQ are enabled and if no external security layer, such as a reverse proxy, is blocking public access to that specific URL. If the site is configured to only allow access via local networks or protected tunnels, the attack path is effectively negated.

Is my Chartbrew instance at risk?

According to Halo Surface Signal, this vulnerability is likely to affect installations because Chartbrew is designed to provide web-based data dashboards, often placing its management interfaces within the reachable attack surface. If your instance is accessible over the network and lacks an independent firewall or reverse proxy to block the administrative path, it should be considered exposed.

How do I secure my environment against this?

The primary step is to update your Chartbrew installation to version 5.2.3 or later, which includes the necessary authentication fix. Before updating, identify all running instances of the application, determine if Redis and BullMQ are active, and evaluate your network configuration to ensure that administrative endpoints are not inadvertently exposed to the open web.

References