Log in Start free

Vulnerability · Published Jul 15, 2026 · Assigned by redhat

CVE-2026-12382Aap-gateway: missing requestheaderstoremove allows mtls bypass via subject header spoofing

High 8.2

In plain English

A high-severity authentication bypass by spoofing in Red Hat Ansible Automation Platform 2.5 for RHEL 8 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High
Exploit odds (30 days)0.5%top 59.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 see references
Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9 see references
Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 see references
Red Hat Red Hat Ansible Automation Platform 2.6 see references
Red Hat Red Hat Ansible Automation Platform 2.7 see references

Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

References