CVE-2026-11807

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

publishedCWE-862

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.

Technical severity9.6 criticalCVSS 3.1 · CNA: redhat

Published2026-06-23Source updated 2026-11-04

Collected2026-11-042 attributed sources

Fixes and workarounds

Workaround

The following practices would help for reducing or avoiding the exposure to this flaw: 1) Restrict network access to the EDA websocket endpoint. 2) Review and limit user accounts with any level of Ansible Automation Platform authentication until the fix is applied.

Source: CNA: redhat

Fix

RHSA-2026:28376: Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9 RHSA-2026:28377: Red Hat Ansible Automation Platform 2.6 for RHEL 9 RHSA-2026:28497: Red Hat Ansible Automation Platform 2.5 RHSA-2026:28492: Red Hat Ansible Automation Platform 2.6 RHSA-2026:28440: Red Hat Ansible Automation Platform 2.7

Source: ADP: redhat-SADP

Workaround

Source: ADP: redhat-SADP

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
Red Hat Ansible Automation Platform 2.5 for RHEL 8 Red Hat `automation-eda-controller` https://access.redhat.com/downloads/content/package-browser/	≥ 0:1.1.19-1.el8ap; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Ansible Automation Platform 2.5 for RHEL 9 Red Hat `automation-eda-controller` https://access.redhat.com/downloads/content/package-browser/	≥ 0:1.1.19-1.el9ap; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Ansible Automation Platform 2.6 for RHEL 9 Red Hat `automation-eda-controller` https://access.redhat.com/downloads/content/package-browser/	≥ 0:1.2.9-2.el9ap; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Ansible Automation Platform 2.5 Red Hat `ansible-automation-platform-25/eda-controller-rhel8` https://catalog.redhat.com/software/containers/	≥ 1781741251; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Ansible Automation Platform 2.6 Red Hat `ansible-automation-platform-26/eda-controller-rhel9` https://catalog.redhat.com/software/containers/	≥ 1781732675; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Ansible Automation Platform 2.7 Red Hat `ansible-automation-platform-27/eda-controller-rhel9` https://catalog.redhat.com/software/containers/	≥ 1781730525; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Ansible Automation Platform 2 Red Hat `ansible-automation-platform-24/eda-controller-rhel8` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat Ansible Automation Platform 2.5 for RHEL 8 Red Hat `automation-eda-controller` https://access.redhat.com/downloads/content/package-browser/	≥ 0:1.1.19-1.el8ap; < * (unaffected, rpm) Other versions: affected	ADP: redhat-SADP
Red Hat Ansible Automation Platform 2.5 for RHEL 9 Red Hat `automation-eda-controller` https://access.redhat.com/downloads/content/package-browser/	≥ 0:1.1.19-1.el9ap; < * (unaffected, rpm) Other versions: affected	ADP: redhat-SADP
Red Hat Ansible Automation Platform 2.6 for RHEL 9 Red Hat `automation-eda-controller` https://access.redhat.com/downloads/content/package-browser/	≥ 0:1.2.9-2.el9ap; < * (unaffected, rpm) Other versions: affected	ADP: redhat-SADP
Red Hat Ansible Automation Platform 2.5 Red Hat `ansible-automation-platform-25/eda-controller-rhel8` https://catalog.redhat.com/software/containers/	≥ 1781741251; < * (unaffected, rpm) Other versions: affected	ADP: redhat-SADP
Red Hat Ansible Automation Platform 2.6 Red Hat `ansible-automation-platform-26/eda-controller-rhel9` https://catalog.redhat.com/software/containers/	≥ 1781732675; < * (unaffected, rpm) Other versions: affected	ADP: redhat-SADP
Red Hat Ansible Automation Platform 2.7 Red Hat `ansible-automation-platform-27/eda-controller-rhel9` https://catalog.redhat.com/software/containers/	≥ 1781730525; < * (unaffected, rpm) Other versions: affected	ADP: redhat-SADP

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 9.6 critical	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N`	CNA: redhat
3.1 / 9.6 critical	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N`	ADP: redhat-SADP

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://access.redhat.com/errata/RHSA-2026:28376CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28377CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28440CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28492CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28497CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-11807CNA: redhat · vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2487036CNA: redhat · issue-tracking, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-11807ADP: redhat-SADP · vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2487036ADP: redhat-SADP · issue-tracking, x_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-11807.jsonADP: redhat-SADP · x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:28376ADP: redhat-SADP · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28377ADP: redhat-SADP · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28497ADP: redhat-SADP · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28492ADP: redhat-SADP · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28440ADP: redhat-SADP · vendor-advisory, x_refsource_REDHAT

For agents and automation

Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.

Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.

Get an API key Use x402 Connect an agent

Endpoints and access details

https://api.y2.dev/api/v2/cyber/cves
https://api.y2.dev/api/v2/cyber/cves/{cveId}

A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.

For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.

Agent access JSON · OpenAPI · CVE API guide