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Fencer Vulns
high 8.2

CVE-2026-84486 json

Automation-controller: automation-controller-container: automation-controller: unauthenticated debug scheduler-trigger endpoints (allowany, routed without debug guard) allow advisory-lock starvation of job dispatch (dos)

published 2026-09-23 46 d ago modified 2026-11-05 4 d ago also EUVD-2026-85548

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

A flaw was found in Red Hat Ansible Automation Platform's automation- controller. Four debug views that trigger the internal task, dependency, and workflow schedulers are configured to allow any user (including unauthenticated clients) and are routed in production builds because their URL include is not gated on the debug setting. An unauthenticated remote attacker can repeatedly invoke these endpoints to acquire the cluster-wide scheduler advisory lock; because the legitimate scheduler acquires the same lock without waiting, the attacker causes real scheduler runs to be skipped, stalling job dispatch for all tenants, while also consuming controller web workers. The debug root view additionally discloses the list of debug endpoints to unauthenticated callers.

Patch / fix

  • 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 2.6 1.6.8-1.el10ap
  • receptor ansible automation platform inside 2.6, ansible automation platform developer 2.6, ansible automation platform 2.6 1.6.8-1.el9ap
  • python-sqlparse ansible automation platform developer 2.6, ansible automation platform 2.6 0.6.0-1.el10ap
  • python3-sqlparse ansible automation platform developer 2.6, ansible automation platform 2.6 0.6.0-1.el10ap
  • python3.12-sqlparse ansible automation platform developer 2.6, ansible automation platform 2.6 0.6.0-1.el9ap
  • python3.12-gitpython ansible automation platform 2.6 3.1.60-1.el9ap
  • automation-controller ansible automation platform developer 2.6, ansible automation platform 2.6 4.7.17-1.el9ap
  • automation-platform-ui ansible automation platform 2.6 2.6.14-1.el9ap

red hat advisories RHSA-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-2026-84486 updated cvss 8.2

automation-controller: automation-controller-container: automation-controller: unauthenticated debug scheduler-trigger endpoints (AllowAny, routed without DEBUG guard) allow advisory-lock starvation o

  • 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 2.6 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
46 d ago

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected products

  • 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

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.