Red Hat Ansible Automation Platform mTLS Route Configuration config/headers.conf remove_request_headers Subject injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Red Hat Ansible Automation Platform. The impacted element is the function remove_request_headers of the file config/headers.conf of the component mTLS Route Configuration. The manipulation of the argument Subject leads to injection. This vulnerability is documented as CVE-2026-12382. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Red Hat Ansible Automation Platform (affected version unknown). It has been rated as critical. This issue affects the function remove_request_headers of the file config/headers.conf of the component mTLS Route Configuration. The manipulation of the argument Subject with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in the AAP Gateway Envoy proxy configuration. The non-mTLS route to EDA event streams does not remove the Subject HTTP header from client requests, despite the source code defining requestHeadersToRemove for this header. An unauthenticated remote attacker can inject a spoofed Subject header matching a legitimate client certificate DN to bypass mTLS authentication and inject arbitrary events into protected EDA event streams.

It is possible to read the advisory at access.redhat.com. The identification of this vulnerability is CVE-2026-12382 since 06/16/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/15/2026). The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Automation Software

Vendor

• Red Hat

Name

• Ansible Automation Platform

License

• open-source

Website

• Vendor: https://www.redhat.com/

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