Auth bypass in Red Hat Ansible Automation Platform 2
CVE-2026-11807
A missing authorization vulnerability was found in the Event-Driven Ansible (EDA) websocket API. The /api/eda/ws/ansible-rulebook endpoint does not verify user permissions when processing Worker messages. Any authenticated user can send a forged message with an arbitrary activation_id to receive plaintext credentials associated with that activation, including OAuth tokens, vault passwords, and SSH keys.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Red Hat Ansible Automation Platform 2
- Red Hat Ansible Automation Platform 2.5 — versions 1781741251
- Red Hat Ansible Automation Platform 2.5 For Rhel 8 — versions 0:1.1.19-1.el8ap
- Red Hat Ansible Automation Platform 2.5 For Rhel 9 — versions 0:1.1.19-1.el9ap
- Red Hat Ansible Automation Platform 2.6 — versions 1781732675
- Red Hat Ansible Automation Platform 2.6 For Rhel 9 — versions 0:1.2.9-2.el9ap
- Red Hat Ansible Automation Platform 2.7 — versions 1781730525
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2026:28492 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:28497 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2026-11807 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:28376 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:28377 (vendor-advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- access.redhat.com/errata/RHSA-2026:28440 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-11807?
- CVE-2026-11807 is a critical-severity vulnerability in Red Hat Ansible Automation Platform 2, classified under Missing Authorization. CVSS score: 9.6/10. Published 2026-06-23.
- How severe is CVE-2026-11807?
- Critical severity. CVSS v3 base score is 9.6 out of 10.