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Response snapshot Nov 5, 2026, 01:41 UTC

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VulnerabilityCVE-2026-84714

A flaw was found in the automation-controller input-validation guard sanitize_jinja(). The function uses two regular expressions to reject...

A flaw was found in the automation-controller input-validation guard sanitize_jinja().

At a glance

Exploited
Not known
Severity
7.1 High (CVSS 3.1)
Chance of exploitation
Not estimated
Sources
1 source

What to do

Check the vendor advisory for affected versions and fixes.

Read NVD CVE-2026-84714 (opens a new tab)

What happened

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.

Scores and how they were measured

CVSS base severity

7.1

Version 3.1As of

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

Not available

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Sources

  1. Primary source

    NVD CVE-2026-84714 (opens a new tab)

    NVD record: description, CVSS (the CNA score is preferred), affected products, and publication date. Not evidence of exploitation.

    Published Checked

  2. Primary source

    NVD CVE API 2.0 (opens a new tab)

    The NVD API page that supplied this CVE record.

    Published Date not suppliedChecked

  3. Primary source

    NVD CVE API 2.0 (opens a new tab)

    The NVD API page that supplied this CVE record.

    Published Date not suppliedChecked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, November 5). A flaw was found in the automation-controller input-validation guard sanitize_jinja(). The function uses two regular expressions to reject... (CVE-2026-84714). https://kevwire.com/record/CVE-2026-84714

MLA

"A flaw was found in the automation-controller input-validation guard sanitize_jinja(). The function uses two regular expressions to reject... (CVE-2026-84714)." KEVWire, 5 Nov. 2026, kevwire.com/record/CVE-2026-84714.

Chicago

KEVWire. "A flaw was found in the automation-controller input-validation guard sanitize_jinja(). The function uses two regular expressions to reject... (CVE-2026-84714)." Last modified November 5, 2026. https://kevwire.com/record/CVE-2026-84714.

Evidence summary (plain text)

A flaw was found in the automation-controller input-validation
                  guard sanitize_jinja(). The function uses two regular
                  expressions to reject... (Sep 23, 2026).
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.
CVSS 7.1 (version 3.1; evidence as of Nov 5, 2026; https://nvd.nist.gov/vuln/detail/CVE-2026-84714).
Sources:
NVD CVE-2026-84714: https://nvd.nist.gov/vuln/detail/CVE-2026-84714
NVD CVE API 2.0: https://services.nvd.nist.gov/rest/json/cves/2.0?lastModStartDate=2026-11-04T23:46:01.337Z&lastModEndDate=2026-11-05T01:20:57.170Z&resultsPerPage=500&startIndex=0
NVD CVE API 2.0: https://services.nvd.nist.gov/rest/json/cves/2.0?lastModStartDate=2026-11-04T23:10:57.688Z&lastModEndDate=2026-11-05T00:45:56.105Z&resultsPerPage=500&startIndex=0
Record ID: CVE-2026-84714.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Nov 5, 2026, 01:20 UTC. Ingestion is not an independent editorial investigation.

NVD status: Awaiting Analysis. Publication in the NVD is not evidence of exploitation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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Record details

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