CVE-2026-12383: Red Hat Ansible Automation Platform 2.5 For Rhel 8

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A flaw was found in the Event-Driven Ansible (EDA) server. The ExternalEventStreamViewSet uses permissive access controls (permission_classes=[AllowAny], authentication_classes=[]) and relies solely on the Subject HTTP header value for mTLS authentication without verifying that the header originated from a trusted proxy. Additionally, the expected certificate Distinguished Name is leaked in the 403 error response body. An attacker who can reach the EDA API endpoint with a spoofed Subject header can inject arbitrary events into mTLS-protected event streams, triggering downstream automation actions.

Affected products

• Red Hat Red Hat Ansible Automation Platform 2.5 For Rhel 8: before 0:1.1.21-1.el8ap (fixed in 0:1.1.21-1.el8ap)
• Red Hat Red Hat Ansible Automation Platform 2.5 For Rhel 9: before 0:1.1.21-1.el9ap (fixed in 0:1.1.21-1.el9ap)
• Red Hat Red Hat Ansible Automation Platform 2.6 For Rhel 9: before 0:1.2.11-1.el9ap (fixed in 0:1.2.11-1.el9ap)
• Red Hat Red Hat Ansible Automation Platform 2.7: before 1785374869 (fixed in 1785374869)

Published 2026-07-27. Last modified 2026-08-04.