CVE-2026-84712
Automation-controller: automation-controller: unauthenticated /api/v2/ping/ discloses automation-mesh instance topology and instance-group membership
A flaw was found in the automation-controller API. The unauthenticated health-check endpoint /api/v2/ping/ (ApiV2PingView, AllowAny) over-serializes RBAC-gated automation-mesh data into its anonymous response, exposing the full instance inventory (node hostnames, node types, UUIDs, heartbeats, capacities, and exact versions), all instance-group names and membership, the deployment install UUID, and the active control node. A remote, unauthenticated attacker can use this to map the control plane and fingerprint software versions for targeted attacks. This flaw affects confidentiality only; it does not expose secrets, credentials, or tenant data.
Fixes and workarounds
Workaround
There is no configuration option that trims the data returned by the unauthenticated /api/v2/ping/ endpoint (also reachable as /api/controller/v2/ping/). Exposure can be reduced by restricting network access to the automation-controller API so that only trusted networks and health probes can reach it: block or restrict external access to the /api/v2/ping/ and /api/controller/v2/ping/ routes at the reverse proxy, load balancer, or firewall, and front health checks with an infrastructure-level probe that does not proxy the /ping/ endpoint to untrusted clients. The definitive fix is to update to a version of automation-controller that no longer serializes instance, instance-group, install UUID, and active-node data in the unauthenticated response.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat Ansible Automation Platform 2.5 for RHEL 8 Red Hat automation-controller
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.6.33-1.el8ap; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2.5 for RHEL 9 Red Hat automation-controller
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.6.33-1.el9ap; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2.6 for RHEL 9 Red Hat automation-controller
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.7.17-1.el9ap; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2.6 Red Hat ansible-automation-platform-26/controller-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1789673739; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2.7 Red Hat ansible-automation-platform-27/controller-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1789580684; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 5.3 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | CNA: redhat |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/errata/RHSA-2026:71113CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:71114CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:71177CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:71179CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-84712CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2527196CNA: redhat · issue-tracking, x_refsource_REDHAT
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