Aap-gateway: missing requestheaderstoremove allows mtls bypass via subject header spoofing (Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.46 % · percentile 40 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Awaiting Analysis
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.
Weaknesses (CWE)
- CWE-290 — Authentication Bypass by Spoofing
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N | redhat |
| CVSS 3.1 | HIGH 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N | NVD · secalert@redhat.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-44739
- GCVE · GCVE-0-2026-12382
Affected products
| Product | Versions |
|---|---|
| Red Hat · Red Hat Ansible Automation Platform 2.5 for RHEL 8 | unaffected 0:2.5.20260715-1.el8ap < * |
| Red Hat · Red Hat Ansible Automation Platform 2.5 for RHEL 9 | unaffected 0:2.5.20260715-1.el9ap < * |
| Red Hat · Red Hat Ansible Automation Platform 2.6 for RHEL 9 | unaffected 0:2.6.20260422-1.el9ap < * |
| Red Hat · Red Hat Ansible Automation Platform 2.6 | unaffected 1777311120 < * |
| Red Hat · Red Hat Ansible Automation Platform 2.7 | unaffected 1783919486 < * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |