---
id: "CVE-2026-111449"
kind: "vulnerability"
aliases: ["CVE-2026-111449"]
title: "Wheels: debug error details can leak to unauthorized clients under a race"
severity: "medium"
cvss: 5.9
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["coldfusion", "lucee", "package", "self-hosted", "wheels"]
not_affected_if: ["auth-required", "default-config"]
published_at: "2026-10-16T04:18:31+00:00"
first_seen_at: "2026-10-23T21:57:12+00:00"
updated_at: "2026-10-25T04:09:53+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111449", "first_seen_at": "2026-10-23T21:57:12+00:00"}]
---

# Wheels: debug error details can leak to unauthorized clients under a race

When allowIPBasedDebugAccess is turned on, an allowed admin request can change error display settings in shared application scope. A concurrent unauthorized request that raises an error can then receive full exception details, including any sensitive data they contain.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Wheels version in the app's `box.json` or `wheels` dependency; affected range is `3.0.0` through `4.1.1`.
- Check the application config for `allowIPBasedDebugAccess` and confirm it is set to `false` (the default).

## Fix

- Upgrade Wheels to `4.1.2`.
- Keep `allowIPBasedDebugAccess` set to `false` in production until the upgrade is applied.

## Timeline

- 2026-10-23T21:57:12+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111449

## From the sources

Wheels 3.0.0 through 4.1.1 can disclose detailed exceptions when allowIPBasedDebugAccess=true (disabled by default). An allowed administrator request changes error/debug-display settings in shared application scope. If it overlaps with an unauthorized client's request that raises an error, that client can receive full exception details, including tag context or a serialized exception, and any sensitive data they contain. This race does not bypass the production gate protecting developer tools. This is fixed in 4.1.2.

---

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