High severity · published Jul 15, 2026
CVE-2026-12382
Aap-gateway: missing requestheaderstoremove allows mtls bypass via subject header spoofing
8.2
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ansible Automation Platform 2.6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ansible Automation Platform 2.6 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ansible Automation Platform 2.7 · Red Hat
All versions, or not specified · source: vendor
Affected product
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 8
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12382
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12382
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:13508
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:13545
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:42078
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:42142
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-12382
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2489126
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