Bug 2512372 (CVE-2026-71463)

Summary: CVE-2026-71463 automation-controller: automation-controller-container: automation-controller: Notification template Jinja whitelist bypass via conditional gating leaks tracebacks
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
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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Fixed In Version: Doc Type: ---
Doc Text:
Notification template Jinja AST whitelist only inspects static Getattr nodes. Dynamic subscripts (job['job'+'_env']) and {% if job.id > 100 %} conditional gating bypass both the AST check and the test-render (stub has small job.id). At runtime, the gated branch executes and exceptions write full tracebacks into notification body, which is POSTed to attacker-controlled webhook URL. Leaks install paths, Python version, source line numbers.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Deadline: 2026-09-06   

Description OSIDB Bzimport 2026-08-06 23:22:02 UTC 
A flaw was found in automation-controller. The notification template Jinja whitelist only inspects static Getattr AST nodes. An attacker with notification template admin privileges can bypass the whitelist using dynamic subscript expressions or conditional gating on runtime values that differ from the test-render stub. Exceptions raised during notification rendering write full Python tracebacks into the notification body, which is sent to the attacker-controlled webhook URL, leaking install paths, Python version, and source file line numbers.
Comment 1 Jon Orris 2026-09-23 20:49:45 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
Comment 2 Jon Orris 2026-09-23 21:06:44 UTC 
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.5 for RHEL 9
  Red Hat Ansible Automation Platform 2.5 for RHEL 8

Via RHSA-2026:71114 https://access.redhat.com/errata/RHSA-2026:71114