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Fencer Vulns
critical 9.6

CVE-2026-11807 json

Eda-server: websocket missing authorization allows credential theft via activation_id spoofing

published 2026-06-23 4 mo ago modified 2026-11-04 4 d ago also EUVD-2026-38598

cvss
9.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 0:1.1.19-1.el8ap
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9 0:1.1.19-1.el9ap
  • Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 0:1.2.9-2.el9ap
  • Red Hat Red Hat Ansible Automation Platform 2.5 1781741251
  • Red Hat Red Hat Ansible Automation Platform 2.6 1781732675
  • Red Hat Red Hat Ansible Automation Platform 2.7 1781730525
  • automation-eda-controller ansible automation platform 2.5 1.1.19-1.el8ap
  • automation-eda-controller ansible automation platform 2.5 1.1.19-1.el9ap
  • automation-eda-controller-base ansible automation platform 2.5 1.1.19-1.el8ap
  • automation-eda-controller-base ansible automation platform 2.5 1.1.19-1.el9ap
  • automation-eda-controller-base-services ansible automation platform 2.5 1.1.19-1.el8ap
  • automation-eda-controller-base-services ansible automation platform 2.5 1.1.19-1.el9ap
  • automation-eda-controller-worker-services ansible automation platform 2.5 1.1.19-1.el8ap
  • automation-eda-controller-worker-services ansible automation platform 2.5 1.1.19-1.el9ap

red hat advisories RHSA-2026:28376RHSA-2026:28377

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-11807 updated cvss 9.6

eda-server: websocket missing authorization allows credential theft via activation_id spoofing

  • Red Hat Ansible Automation Platform 2.5 ansible-automation-platform-25/eda-controller-rhel8 1781741251
    fixed: vendor fix RHSA-2026:28497
  • Red Hat Ansible Automation Platform 2.5 for RHEL 8 automation-eda-controller 1.1.19-1.el8ap, automation-eda-controller-base 1.1.19-1.el8ap, automation-eda-controller-base-services 1.1.19-1.el8ap, automation-eda-controller-worker-services 1.1.19-1.el8ap, automation-eda-controller-event-stream-services 1.1.19-1.el8ap Red Hat Ansible Automation Platform 2.5 for RHEL 9 automation-eda-controller 1.1.19-1.el9ap, automation-eda-controller-base 1.1.19-1.el9ap, automation-eda-controller-base-services 1.1.19-1.el9ap, automation-eda-controller-worker-services 1.1.19-1.el9ap, automation-eda-controller-event-stream-services 1.1.19-1.el9ap
    fixed: vendor fix RHSA-2026:28376
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26/eda-controller-rhel9 1781732675
    fixed: vendor fix RHSA-2026:28492
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9 automation-eda-controller 1.2.9-2.el9ap, automation-eda-controller-base 1.2.9-2.el9ap, automation-eda-controller-base-services 1.2.9-2.el9ap, automation-eda-controller-worker-services 1.2.9-2.el9ap, automation-eda-controller-event-stream-services 1.2.9-2.el9ap
    fixed: vendor fix RHSA-2026:28377
  • Red Hat Ansible Automation Platform 2.7 ansible-automation-platform-27/eda-controller-rhel9 1781730525
    fixed: vendor fix RHSA-2026:28440
  • Red Hat Ansible Automation Platform 2 ansible-automation-platform-24/eda-controller-rhel8 Red Hat Ansible Automation Platform 2.5 ansible-automation-platform-25/hub-rhel8 1779772027, ansible-automation-platform-25/gateway-rhel8 1779788582, ansible-automation-platform-25/hub-web-rhel8 1779773575, ansible-automation-platform-25/receptor-rhel8 1779611418, ansible-automation-platform-25/controller-rhel8 1779787359, ansible-automation-platform-25/de-minimal-rhel8 1779772684, +18 more Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26/hub-rhel9 1779761061, ansible-automation-platform-26/gateway-rhel9 1779773804, ansible-automation-platform-26/hub-web-rhel9 1779765164, ansible-automation-platform-26/receptor-rhel9 1779770938, ansible-automation-platform-26/mcp-tools-rhel9 1779772877, ansible-automation-platform-26/controller-rhel9 1779762270, +22 more Red Hat Ansible Automation Platform 2.7 ansible-automation-platform/platform-operator-bundle 1781768160, ansible-automation-platform-27/eda-controller-ui-rhel9 1781733327, ansible-automation-platform-27/eda-controller-rhel9-operator 1781655299
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CISA ADP 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected products

  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9
  • Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9
  • Red Hat Red Hat Ansible Automation Platform 2.5
  • Red Hat Red Hat Ansible Automation Platform 2.6
  • Red Hat Red Hat Ansible Automation Platform 2.7
  • Red Hat Red Hat Ansible Automation Platform 2

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.