---
id: CVE-2026-84712
title: A flaw was found in the automation-controller API
summary: |-
  A flaw was found in the automation-controller API. The
                    unauthenticated health-check endpoint /api/v2/ping/
                    (ApiV2PingView, AllowAny) over-serializes RBAC-gated
                    automation-mesh data in…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-497
vendor: Red Hat
product: automation-controller
affected:
  - automation-controller (all versions)
  - automation-controller (all versions)
  - automation-controller (all versions)
  - ansible-automation-platform-26/controller-rhel9 (all versions)
  - ansible-automation-platform-27/controller-rhel9 (all versions)
patched:
  - ansible_automation_platform_2_5_for_rhel 8
  - ansible_automation_platform_2_5_for_rhel 9
  - ansible_automation_platform_2_6_for_rhel 9
  - ansible_automation_platform 2.6
  - ansible_automation_platform 2.7
published: '2026-09-23'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:00:46.893'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84712'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:71113'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:71114'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:71177'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:71179'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-84712'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2527196'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-84712.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-84712'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84712'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00337
epssPercentile: 0.24381
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-24T14:29:05.289631Z'
ingestedAt: '2026-09-23T20:32:10.751Z'
---

## Overview

A flaw was found in the automation-controller API. The
                  unauthenticated health-check endpoint /api/v2/ping/
                  (ApiV2PingView, AllowAny) over-serializes RBAC-gated
                  automation-mesh data into its anonymous response, exposing the
                  full instance inventory (node hostnames, node types, UUIDs,
                  heartbeats, capacities, and exact versions), all instance-group
                  names and membership, the deployment install UUID, and the
                  active control node. A remote, unauthenticated attacker can use
                  this to map the control plane and fingerprint software versions
                  for targeted attacks. This flaw affects confidentiality only;
                  it does not expose secrets, credentials, or tenant data.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **RHSA-2026:71114** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9 · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:71114)
- **RHSA-2026:71113** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.6 for RHEL 9 · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:71113)
- **RHSA-2026:71179** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.6 · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:71179)
- **RHSA-2026:71177** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.7 · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:71177)