CVE-2026-84684
Description
A flaw was found in Red Hat Ansible Automation Platform's automation- controller. When attaching a source inventory to a constructed inventory through the input_inventories relationship endpoint, the controller verifies only that the requesting user can read the source inventory, rather than that they hold use permission on it, unlike instance group attachment on the same access class. An authenticated user who can administer a constructed inventory and has read-only visibility of an inventory in another organization -- for example an organization or system auditor -- can attach that foreign inventory as an input. On synchronization the controller clones every host and host variable, including secrets, into the attacker's inventory, and because the attacker administers the constructed inventory they can run ad hoc commands against the cloned hosts, resulting in cross-tenant disclosure of inventory data and secrets and code execution against another tenant's managed hosts.
Statement
This flaw affects automation-controller as shipped in Red Hat Ansible Automation Platform. Exploitation requires an authenticated user who can administer a constructed inventory and can read (view) an inventory in another organization; the impact is cross-tenant disclosure of inventory data and secrets and ad hoc code execution against another tenant's hosts.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 9.6 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Changed | N/A | N/A |
| Confidentiality | High | N/A | N/A |
| Integrity Impact | High | N/A | N/A |
| Availability Impact | None | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data; Read Files or Directories
An attacker could bypass intended access restrictions to read sensitive data, either by reading the data directly from a data store that is not correctly restricted, or by accessing insufficiently-protected, privileged functionality to read the data.
Integrity
Technical Impact: Modify Application Data; Modify Files or Directories
An attacker could bypass intended access restrictions to modify sensitive data, either by writing the data directly to a data store that is not correctly restricted, or by accessing insufficiently-protected, privileged functionality to write the data.
Access Control
Technical Impact: Gain Privileges or Assume Identity; Bypass Protection Mechanism
An attacker could bypass intended access restrictions to gain privileges by modifying or reading critical data directly, or by accessing privileged functionality.
Confidentiality,Integrity,Availability
Technical Impact: Execute Unauthorized Code or Commands
An attacker could use elevated privileges to execute unauthorized commands or code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
An attacker could gain unauthorized access to resources on the system and excessively consume those resources, leading to a denial of service.
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