What’s Vulnerable › Vulnerabilities
CVE-2026-84720: Automation-controller: automation-controller: workflowjobnode.ancestor_artifacts lacks prevent_search, exposing no_log set_stats artifacts via orm-traversal count-oracle
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-23 · updated 2026-09-24
- Weakness: CWE-639
Description
A flaw was found in the Ansible Automation Platform automation-controller. The WorkflowJobNode.ancestor_artifacts database column, which stores the raw merged set_stats artifacts propagated between workflow nodes, is not wrapped in prevent_search() and is therefore accepted for arbitrary field lookups by the REST filter backend, even though it is omitted from the API serializer. Because the column is persisted before Ansible's no_log masking is applied, a user with only read access to a workflow — or, via a regular-expression lookup that bypasses the JSON cross-relation filter guard through the world-readable credential-types endpoint, any authenticated user with no roles — can use the result count as a boolean/count oracle to recover, character by character, secret values that a playbook author explicitly marked no_log, including across organizations.
Affected products
- Red Hat Ansible Automation Platform 2.5 for RHEL 8: all versions — fixed in 0:4.6.33-1.el8ap
- Red Hat Ansible Automation Platform 2.5 for RHEL 9: all versions — fixed in 0:4.6.33-1.el9ap
- Red Hat Ansible Automation Platform 2.6: all versions — fixed in 1789673739
- Red Hat Ansible Automation Platform 2.6 for RHEL 9: all versions — fixed in 0:4.7.17-1.el9ap
- Red Hat Ansible Automation Platform 2.7: all versions — fixed in 1789580684
How to fix
Upgrade to a fixed version: Red Hat Ansible Automation Platform 2.5 for RHEL 8 0:4.6.33-1.el8ap; Red Hat Ansible Automation Platform 2.5 for RHEL 9 0:4.6.33-1.el9ap; Red Hat Ansible Automation Platform 2.6 1789673739; Red Hat Ansible Automation Platform 2.6 for RHEL 9 0:4.7.17-1.el9ap; Red Hat Ansible Automation Platform 2.7 1789580684. Check the vendor advisory for mitigations.
References
- https://access.redhat.com/errata/RHSA-2026:71113
- https://access.redhat.com/errata/RHSA-2026:71114
- https://access.redhat.com/errata/RHSA-2026:71177
- https://access.redhat.com/errata/RHSA-2026:71179
- https://access.redhat.com/security/cve/CVE-2026-84720
- https://bugzilla.redhat.com/show_bug.cgi?id=2527214
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