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Fencer Vulns
medium 5.3

CVE-2026-84717 json

Automation-controller: automation-controller: unauthenticated 200-vs-403 oracle in bitbucket data center webhook receiver enumerates webhook-enabled job templates

published 2026-09-23 46 d ago modified 2026-11-06 3 d ago also EUVD-2026-85612

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

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 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.

Patch / fix

  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 0:4.6.33-1.el8ap
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9 0:4.6.33-1.el9ap
  • Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 0:4.7.17-1.el9ap
  • Red Hat Red Hat Ansible Automation Platform 2.6 1789673739
  • Red Hat Red Hat Ansible Automation Platform 2.7 1789580684
  • receptor ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.8-1.el8ap
  • receptor ansible automation platform inside 2.6, ansible automation platform inside 2.5, ansible automation platform developer 2.6 +3 more 1.6.8-1.el9ap
  • python3.12-sqlparse ansible automation platform developer 2.5, ansible automation platform 2.5 0.6.0-1.el8ap
  • python3.12-sqlparse ansible automation platform developer 2.6, ansible automation platform developer 2.5, ansible automation platform 2.6 +1 more 0.6.0-1.el9ap
  • python3.12-gitpython ansible automation platform 2.5 3.1.60-1.el8ap
  • python3.12-gitpython ansible automation platform 2.6, ansible automation platform 2.5 3.1.60-1.el9ap
  • automation-gateway-server ansible automation platform 2.5 2.5.20260923-1.el8ap
  • automation-gateway-server ansible automation platform 2.5 2.5.20260923-1.el9ap

red hat advisories RHSA-2026:71114RHSA-2026:71113

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-84717 updated cvss 5.3

automation-controller: automation-controller: unauthenticated 200-vs-403 oracle in Bitbucket Data Center webhook receiver enumerates webhook-enabled job templates

  • Red Hat Ansible Automation Platform 2.5 for RHEL 8 automation-controller-venv-tower 4.6.33-1.el8ap Red Hat Ansible Automation Platform 2.5 for RHEL 9 automation-controller-venv-tower 4.6.33-1.el9ap
    fixed: vendor fix RHSA-2026:71114
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26/controller-rhel9 1789673739
    fixed: vendor fix RHSA-2026:71179
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9 automation-controller-venv-tower 4.7.17-1.el9ap
    fixed: vendor fix RHSA-2026:71113
  • Red Hat Ansible Automation Platform 2.7 ansible-automation-platform-27/controller-rhel9 1789580684
    fixed: vendor fix RHSA-2026:71177
  • Red Hat Ansible Automation Platform 2.5 for RHEL 8 receptor 1.6.8-1.el8ap, receptorctl 1.6.8-1.el8ap, automation-hub 4.10.19-1.el8ap, python3.12-sqlparse 0.6.0-1.el8ap, python3.12-gitpython 3.1.60-1.el8ap, automation-controller 4.6.33-1.el8ap, +14 more Red Hat Ansible Automation Platform 2.5 for RHEL 9 receptor 1.6.8-1.el9ap, receptorctl 1.6.8-1.el9ap, automation-hub 4.10.19-1.el9ap, python3.12-sqlparse 0.6.0-1.el9ap, python3.12-gitpython 3.1.60-1.el9ap, automation-controller 4.6.33-1.el9ap, +14 more Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26/hub-rhel9 1789611274, ansible-automation-platform-26/gateway-rhel9 1789666472, ansible-automation-platform-26/hub-web-rhel9 1789615881, ansible-automation-platform-26/receptor-rhel9 1789610120, ansible-automation-platform-26/mcp-tools-rhel9 1789609282, ansible-automation-platform-26/de-minimal-rhel9 1789658734, +24 more Red Hat Ansible Automation Platform 2.6 for RHEL 9 receptor 1.6.8-1.el9ap, receptorctl 1.6.8-1.el9ap, automation-hub 4.11.14-1.el9ap, python3.12-sqlparse 0.6.0-1.el9ap, python3.12-gitpython 3.1.60-1.el9ap, automation-controller 4.7.17-1.el9ap, +28 more Red Hat Ansible Automation Platform 2.6 for RHEL 10 receptor 1.6.8-1.el10ap, receptorctl 1.6.8-1.el10ap, python-sqlparse 0.6.0-1.el10ap, python3-sqlparse 0.6.0-1.el10ap Red Hat Ansible Automation Platform 2.7 ansible-automation-platform-27/hub-rhel9 1789572632, ansible-automation-platform-27/gateway-rhel9 1789579764, ansible-automation-platform-27/hub-web-rhel9 1789575016, ansible-automation-platform-27/receptor-rhel9 1789519651, ansible-automation-platform-27/mcp-tools-rhel9 1789521154, ansible-automation-platform-27/de-minimal-rhel9 1789582543, +25 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
43 d ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9
  • Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9
  • Red Hat Red Hat Ansible Automation Platform 2.6
  • Red Hat Red Hat Ansible Automation Platform 2.7

Classification

Weakness
  • CWE-204 Observable Response Discrepancy

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.