CVE-2026-18141

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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:50336
https://access.redhat.com/errata/RHSA-2026:50340
https://access.redhat.com/errata/RHSA-2026:50479
https://access.redhat.com/security/cve/CVE-2026-18141
https://bugzilla.redhat.com/show_bug.cgi?id=2508155

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-31 16:17

Updated : 2026-08-04 22:17

NVD link : CVE-2026-18141

Mitre link : CVE-2026-18141

CVE.ORG link : CVE-2026-18141

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

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