Description
A flaw was found in Red Hat Ansible Automation Platform's automation-controller. When a
custom credential type is created or updated, the injector configuration is validated by
rendering each attacker-supplied Jinja2 template synchronously inside the web request
worker, with no limit on iteration count, output size, or execution time. An
authenticated superuser can submit a credential type whose injector contains deeply
nested loops or large string operations, consuming CPU and wall-clock time in the web
worker until it is killed by the request timeout; issuing enough concurrent requests
places all web workers into a kill-and-respawn loop, making the Controller API and UI
unavailable for the duration of the attack. Additionally, certain template constructs
raise exception types that the validator does not handle, resulting in an unhandled
server error (HTTP 500) instead of a clean validation error. The rendering sandbox
prevents code execution, so there is no confidentiality or integrity impact.
Published: n/a
Score: 4.9 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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History

Thu, 24 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in Red Hat Ansible Automation Platform's automation-controller. When a custom credential type is created or updated, the injector configuration is validated by rendering each attacker-supplied Jinja2 template synchronously inside the web request worker, with no limit on iteration count, output size, or execution time. An authenticated superuser can submit a credential type whose injector contains deeply nested loops or large string operations, consuming CPU and wall-clock time in the web worker until it is killed by the request timeout; issuing enough concurrent requests places all web workers into a kill-and-respawn loop, making the Controller API and UI unavailable for the duration of the attack. Additionally, certain template constructs raise exception types that the validator does not handle, resulting in an unhandled server error (HTTP 500) instead of a clean validation error. The rendering sandbox prevents code execution, so there is no confidentiality or integrity impact.
Title automation-controller: automation-controller: CredentialType injector validation renders attacker-supplied Jinja2 templates synchronously in the web worker, allowing uncontrolled resource consumption (denial of service) and an unhandled-exception (500) via /api/controller/v2/credential_types/
First Time appeared Redhat
Redhat ansible Automation Platform
Weaknesses CWE-1050
CPEs cpe:/a:redhat:ansible_automation_platform:2.6::el9
Vendors & Products Redhat
Redhat ansible Automation Platform
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Subscriptions

Redhat Ansible Automation Platform
cve-icon MITRE

No data.

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-23T00:00:00Z

Links: CVE-2026-84709 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-1050

    Excessive Platform Resource Consumption within a Loop