---
id: CVE-2026-41186
title: >-
  When Calico's shared debug server is enabled (disabled by default), the Calico
  kube-controllers and Goldmane components bind their Go pprof debug listener to
  0.0.0.0 without authentication
summary: >-
  When Calico's shared debug server is enabled (disabled by default), the Calico
  kube-controllers and Goldmane components bind their Go pprof debug listener to
  0.0.0.0 without authentication. Any pod with network reachability to the
  listen…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-200
  - CWE-489
vendor: tigera
product: calico
affected:
  - calico < 3.21.7
  - calico < 3.31.6
  - calico <= 22.4.0
  - 'calico >= 3.22.0, < 3.22.4'
  - 'calico >= 3.32.0, < 3.32.1'
patched:
  - calico 3.32.1
published: '2026-07-30'
updated: '2026-08-08'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-41186'
references:
  - url: 'https://github.com/projectcalico/calico/pull/12491'
    label: psirt@tigera.io
  - url: 'https://github.com/projectcalico/calico/pull/12633'
    label: psirt@tigera.io
  - url: 'https://github.com/projectcalico/calico/pull/12634'
    label: psirt@tigera.io
  - url: 'https://www.tigera.io/security-bulletins/tta-2026-004/'
    label: psirt@tigera.io
tags:
  - nvd
epss: 0.00666
epssPercentile: 0.49652
ingestedAt: '2026-08-08T13:22:52.518Z'
---

## Overview

When Calico's shared debug server is enabled (disabled by default), the Calico kube-controllers and Goldmane components bind their Go pprof debug listener to 0.0.0.0 without authentication. Any pod with network reachability to the listener can retrieve the process heap, goroutine stacks (including function arguments), and command-line arguments. Depending on the process's in-memory state, the heap may contain sensitive material. The debug listener is opt-in but is unsafe when enabled because it offers no authentication and no safe localhost-only binding option.

## Affected

- `calico < 3.21.7`
- `calico < 3.31.6`
- `calico <= 22.4.0`
- `calico >= 3.22.0, < 3.22.4`
- `calico >= 3.32.0, < 3.32.1`

## Remediation

Upgrade past the affected range:

- `calico 3.32.1`