---
id: CVE-2026-84717
title: A flaw was found in the Ansible Automation Platform automation-controller
summary: >-
  A flaw was found in the Ansible Automation Platform automation-controller. The
  unauthenticated

  Bitbucket Data Center webhook receiver skips HMAC signature verification for
  diagnostics:ping

  events after it has already looked up the target…
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-204
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: '2026-09-24T14:51:56.593'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84717'
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-2026-84717'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2527210'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-84717.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-84717'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84717'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-09-23T20:32:10.752Z'
epss: 0.00337
epssPercentile: 0.24381
---

## Overview

A flaw was found in the Ansible Automation Platform automation-controller. The unauthenticated
Bitbucket Data Center webhook receiver skips HMAC signature verification for diagnostics:ping
events after it has already looked up the target template, causing the endpoint to return HTTP
200 for a template that has a Bitbucket DC webhook configured and HTTP 403 otherwise. An
unauthenticated remote attacker can use this response discrepancy as an oracle to enumerate
which Job Template and Workflow Job Template IDs have Bitbucket DC webhooks configured, without
knowing the secret webhook_key.

## 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)