CVE-2026-12383
Last modified
CVE-2026-12383 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 8 | All versions |
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 9 | All versions |
| Red Hat | Red Hat Ansible Automation Platform 2.6 for RHEL 9 | All versions |
| Red Hat | Red Hat Ansible Automation Platform 2.7 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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