CVE-2026-84714
Received
Received - Intake
Jinja Template Injection in Ansible Automation Controller
Vulnerability report for CVE-2026-84714, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-23
Last updated on: 2026-09-23
Assigner: redhat-SADP
Description
Description
A flaw was found in the automation-controller input-validation
guard sanitize_jinja(). The function uses two regular
expressions to reject user-supplied Jinja, but the patterns
stop at the first interior '}' or '%' character, so a Jinja
expression containing an inner brace (for example an empty
dict) is accepted while remaining valid Jinja. Because
sanitize_jinja() is the sole guard on several launch-time
fields — ad-hoc command module_args, Machine-credential
username / become_method / become_user, and inventory host
names — a low-privileged user can inject Jinja that ansible-core
evaluates in the execution environment. This enables execution
of arbitrary commands in the execution environment (bypassing an
administrator's AD_HOC_COMMANDS module allowlist) and disclosure
of secrets belonging to credentials the attacker cannot read
(by templating a co-attached credential's injected environment
variables), across the credential access-control boundary.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| redhat | automation_controller | * |
| red_hat | ansible_automation_platform | From 2.5 (inc) |
| red_hat | ansible_automation_platform | From 2.6 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-184 | The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete. |
