Bug 2527085 (CVE-2026-84486)

Summary: CVE-2026-84486 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)
Product: [Other] Security Response Reporter: Thomas Eagle <teagle>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: dschmidt, jlanda, kshier, security-response-team, simaishi, stcannon, teagle, yguenane
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
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.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Deadline: 2026-10-01   

Description Thomas Eagle 2026-09-01 20:47:50 UTC
HASH(0x562bfd916208)

Comment 2 Jon Orris 2026-09-23 20:50:56 UTC
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.6 for RHEL 10
  Red Hat Ansible Automation Platform 2.6 for RHEL 9

Via RHSA-2026:71113 https://access.redhat.com/errata/RHSA-2026:71113