Read the docs
TI-2026-14929 Aliases CVE-2026-18141GHSA-9cwv-qxgx-ff4x

Aap-gateway: aap-gateway: authentication bypass in event-driven ansible via forged http header

Priority MEDIUM 42CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
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-295.

Summary

A flaw was found in aap-gateway, a component of Ansible Automation Platform's Event-Driven Ansible (EDA). An unauthenticated remote attacker can bypass mutual Transport Layer Security (mTLS) authentication for event streams. This is achieved by manipulating the event stream URL and forging the HTTP Subject header. The system also inadvertently discloses the expected certificate subject in error messages, which simplifies the attack. This vulnerability allows an attacker to inject arbitrary events into EDA, potentially triggering automated workflows.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00428 37th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories

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

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat Ansible Automation Platform 2.6 for RHEL 9—1.2.11-1.el9apPatch availableCNA
Red HatRed Hat Ansible Automation Platform 2.6—1785780020Patch availableCNA
Red HatRed Hat Ansible Automation Platform 2.7—1785435970Patch availableCNA
Red HatRed Hat Ansible Automation Platform 2——Not affectedCNA
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9 VendorRed Hat Affected — Fixed in 1.2.11-1.el9ap Patch available CNA
  • Red Hat Ansible Automation Platform 2.6 VendorRed Hat Affected — Fixed in 1785780020 Patch available CNA
  • Red Hat Ansible Automation Platform 2.7 VendorRed Hat Affected — Fixed in 1785435970 Patch available CNA
  • Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE names CNA · 7

CPEVersionsRoleVendor
cpe:/a:redhat:ansible_automation_platform:2.6::el102.6—Red Hat
cpe:/a:redhat:ansible_automation_platform:2.6::el92.6—Red Hat
cpe:/a:redhat:ansible_automation_platform_developer:2.6::el102.6—Red Hat
cpe:/a:redhat:ansible_automation_platform_developer:2.6::el92.6—Red Hat
cpe:/a:redhat:ansible_automation_platform_inside:2.6::el92.6—Red Hat
cpe:/a:redhat:ansible_automation_platform:2.7::el92.7—Red Hat
cpe:/a:redhat:ansible_automation_platform:22—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
  • cpe:/a:redhat:ansible_automation_platform_inside:2.6::el9 Versions 2.6 — ·Red Hat
  • cpe:/a:redhat:ansible_automation_platform:2.7::el9 Versions 2.7 — ·Red Hat
  • cpe:/a:redhat:ansible_automation_platform:2 Versions 2 — ·Red Hat

Remediation

Red Hat 3 advisories

  • RHSA-2026:50479 Released 2026-08-04 · Red Hat rating Important
    Red Hat Ansible Automation Platform 2.6 Container Release Update
    • Red Hat Ansible Automation Platform 2.6 registry.redhat.io/ansible-automation-platform-26/controller-rhel9, registry.redhat.io/ansible-automation-platform-26/de-minimal-rhel9, registry.redhat.io/ansible-automation-platform-26/de-supported-rhel9 +7
  • RHSA-2026:50336 Released 2026-08-04 · Red Hat rating Important
    Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update
    • Red Hat Ansible Automation Platform 2.6 for RHEL 10 receptor-1.6.7-1.el10ap, receptorctl-1.6.7-1.el10ap
    • Red Hat Ansible Automation Platform 2.6 for RHEL 9 automation-controller-4.7.15-2.el9ap, automation-controller-cli-4.7.15-2.el9ap, automation-controller-server-4.7.15-2.el9ap +15
  • RHSA-2026:50340 Released 2026-08-04 · Red Hat rating Important
    Red Hat Ansible Automation Platform 2.7 Container Release Update
    • Red Hat Ansible Automation Platform 2.7 registry.redhat.io/ansible-automation-platform-27/controller-rhel9, registry.redhat.io/ansible-automation-platform-27/de-minimal-rhel9, registry.redhat.io/ansible-automation-platform-27/de-supported-rhel9 +7

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 2.6 for RHEL 9, Red Hat Ansible Automation Platform 2.7 — RHSA-2026:50336

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-10632 Eda-server: externaleventstreamviewset trusts subject header without validation and leaks expected dnPriority LOW 39
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ansible Automation Platform 2.6Fixed RHSA-2026:50479
Red Hat Ansible Automation Platform 2.6 for RHEL 9Fixed RHSA-2026:50336
Red Hat Ansible Automation Platform 2.7Fixed RHSA-2026:50340
Not affected: 5 products
  • Red Hat Ansible Automation Platform 2
  • 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

  1. 2026-10-02 Threatist record created from CVE-2026-18141
  2. 2026-10-03 Alias added: GHSA-9cwv-qxgx-ff4x

References

Advisory 3

Other 2

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences