PT-2026-66778 · Red Hat · Red Hat Ansible Automation Platform 2

CVE-2026-18141 · Published 2026-07-31 · Updated 2026-07-31

NVD

CVSS v3.1

8.2

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

A flaw was found in aap-gateway, a component of Ansible Automation Platform's Event-Driven Ansible (EDA). An unauthenticated remote attacker can bypass mutual Transport Layer Security (mTLS) authentication for event streams. This is achieved by manipulating the event stream URL and forging the HTTP Subject header. The system also inadvertently discloses the expected certificate subject in error messages, which simplifies the attack. This vulnerability allows an attacker to inject arbitrary events into EDA, potentially triggering automated workflows.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2026-18141

Affected Products

Red Hat Ansible Automation Platform 2

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-18141 · Security Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2508155 · Note
• https://access.redhat.com/security/cve/CVE-2026-18141 · Note