Aap-gateway: missing requestheaderstoremove allows mtls bypass via subject header spoofing
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-290.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 8 | — | 2.5.20260715-1.el8ap | Patch available | CNA |
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 9 | — | 2.5.20260715-1.el9ap | Patch available | CNA |
| Red Hat | Red Hat Ansible Automation Platform 2.6 for RHEL 9 | — | 2.6.20260422-1.el9ap | Patch available | CNA |
| Red Hat | Red Hat Ansible Automation Platform 2.6 | — | 1777311120 | Patch available | CNA |
| Red Hat | Red Hat Ansible Automation Platform 2.7 | — | 1783919486 | Patch available | CNA |
- Red Hat Ansible Automation Platform 2.5 for RHEL 8 VendorRed Hat Affected — Fixed in 2.5.20260715-1.el8ap Patch available CNA
- Red Hat Ansible Automation Platform 2.5 for RHEL 9 VendorRed Hat Affected — Fixed in 2.5.20260715-1.el9ap Patch available CNA
- Red Hat Ansible Automation Platform 2.6 for RHEL 9 VendorRed Hat Affected — Fixed in 2.6.20260422-1.el9ap Patch available CNA
- Red Hat Ansible Automation Platform 2.6 VendorRed Hat Affected — Fixed in 1777311120 Patch available CNA
- Red Hat Ansible Automation Platform 2.7 VendorRed Hat Affected — Fixed in 1783919486 Patch available CNA
CPE names CNA · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:ansible_automation_platform:2.5::el8 | 2.5 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform:2.5::el9 | 2.5 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8 | 2.5 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform_developer:2.5::el9 | 2.5 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform_inside:2.5::el8 | 2.5 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform_inside:2.5::el9 | 2.5 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform:2.6::el10 | 2.6 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform:2.6::el9 | 2.6 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform_developer:2.6::el10 | 2.6 | — | Red Hat |
| cpe:/a:redhat:ansible_automation_platform_developer:2.6::el9 | 2.6 | — | Red Hat |
- cpe:/a:redhat:ansible_automation_platform:2.5::el8 Versions 2.5 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform:2.5::el9 Versions 2.5 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8 Versions 2.5 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform_developer:2.5::el9 Versions 2.5 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform_inside:2.5::el8 Versions 2.5 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform_inside:2.5::el9 Versions 2.5 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform:2.6::el10 Versions 2.6 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform:2.6::el9 Versions 2.6 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform_developer:2.6::el10 Versions 2.6 — ·Red Hat
- cpe:/a:redhat:ansible_automation_platform_developer:2.6::el9 Versions 2.6 — ·Red Hat
Remediation
Red Hat 4 advisories
- RHSA-2026:42142 Released 2026-07-20 · Red Hat rating ImportantRed Hat Ansible Automation Platform 2.7 Container Release Update
- Red Hat Ansible Automation Platform 2.7 registry.redhat.io/ansible-automation-platform-27/gateway-rhel9, registry.redhat.io/ansible-automation-platform-27/hub-rhel9, registry.redhat.io/ansible-automation-platform-27/lightspeed-chatbot-rhel9 +3
- RHSA-2026:42078 Released 2026-07-20 · Red Hat rating ImportantRed Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update
- Red Hat Ansible Automation Platform 2.5 for RHEL 8 ansible-core-1:2.16.19-1.el8ap, ansible-test-1:2.16.19-1.el8ap, automation-controller-4.6.30-2.el8ap +24
- Red Hat Ansible Automation Platform 2.5 for RHEL 9 ansible-core-1:2.16.19-1.el9ap, ansible-test-1:2.16.19-1.el9ap, automation-controller-4.6.30-2.el9ap +24
- RHSA-2026:13545 Released 2026-05-04 · Red Hat rating ImportantRed Hat Ansible Automation Platform 2.6 Container Release Update
- Red Hat Ansible Automation Platform 2.6 registry.redhat.io/ansible-automation-platform-26/ansible-dev-tools-rhel9, registry.redhat.io/ansible-automation-platform-26/controller-rhel9, registry.redhat.io/ansible-automation-platform-26/eda-controller-rhel9 +11
Show 1 more Red Hat advisories
- RHSA-2026:13508 Released 2026-05-04 · Red Hat rating ImportantRed Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update
- Red Hat Ansible Automation Platform 2.6 for RHEL 10 receptor-1.6.4-3.el10ap, receptorctl-1.6.4-3.el10ap
- Red Hat Ansible Automation Platform 2.6 for RHEL 9 automation-controller-4.7.11-2.el9ap, automation-controller-cli-4.7.11-2.el9ap, automation-controller-server-4.7.11-2.el9ap +25
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9 and 3 more products — RHSA-2026:42142
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-10860 Pulpcore: pulpcore: relative_path_validator bypass via directory traversal in filesystemexportPriority MEDIUM 41
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Ansible Automation Platform 2.5 for RHEL 8 | Fixed | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2.5 for RHEL 9 | Fixed | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2.6 | Fixed | RHSA-2026:13545 |
| Red Hat Ansible Automation Platform 2.6 for RHEL 9 | Fixed | RHSA-2026:13508 |
| Red Hat Ansible Automation Platform 2.7 | Fixed | RHSA-2026:42142 |
Not affected: 6 products
- Red Hat Ansible Automation Platform 2.5 for RHEL 8
- Red Hat Ansible Automation Platform 2.5 for RHEL 9
- Red Hat Ansible Automation Platform 2.6
- Red Hat Ansible Automation Platform 2.6 for RHEL 10
- Red Hat Ansible Automation Platform 2.6 for RHEL 9
- Red Hat Ansible Automation Platform 2.7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12382
- 2026-10-03 Alias added: GHSA-45w6-c976-v24q
References
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Sources
- CVE-2026-12382 · CVE Program
- CVE-2026-12382 · NVD
- FIRST EPSS
- GHSA-45w6-c976-v24q · GitHub Advisory Database · CC BY 4.0
- CVE-2026-12382 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences