CVE-2026-86843

Apache Airflow Teradata provider: SQL injection via unvalidated Dag Params in the compute-cluster example Dag

Published Sep 29, 2026 CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
The Apache Airflow Teradata provider's compute-cluster example Dag declared every one of its Dag Params as unconstrained free text and templated them straight into the compute-cluster operators, which interpolate those values into Teradata DDL. A user who is permitted to trigger that Dag - a lower-trust role than the Dag author, and one that needs no Teradata credentials of its own - could therefore supply SQL fragments that execute under the connection the task runs as, and could additionally redirect the task at any other connection defined in the deployment, because the connection id was itself a free-text Param. Only deployments that run this example Dag, or a Dag copied from it, are affected; the provider's operator code is unchanged. Users of apache-airflow-providers-teradata are recommended to upgrade to version 3.7.0 or later, whose example constrains the Params to validated identifiers and a closed value set and removes connection selection and free-form option strings from trigger-time input. Upgrading does not change a Dag already copied from the example; users who copied it should apply the same constraints to their copy.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
First Time appeared Apache apache-airflow-providers-teradata
CPEs cpe:2.3:a:apache:apache-airflow-providers-teradata:*:*:*:*:*:*:*:*
Vendors & Products Apache apache-airflow-providers-teradata
Type Values Removed Values Added
First Time appeared Apache
Apache airflow Teradata Provider
Vendors & Products Apache
Apache airflow Teradata Provider
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The Apache Airflow Teradata provider's compute-cluster example Dag declared every one of its Dag Params as unconstrained free text and templated them straight into the compute-cluster operators, which interpolate those values into Teradata DDL. A user who is permitted to trigger that Dag - a lower-trust role than the Dag author, and one that needs no Teradata credentials of its own - could therefore supply SQL fragments that execute under the connection the task runs as, and could additionally redirect the task at any other connection defined in the deployment, because the connection id was itself a free-text Param. Only deployments that run this example Dag, or a Dag copied from it, are affected; the provider's operator code is unchanged. Users of apache-airflow-providers-teradata are recommended to upgrade to version 3.7.0 or later, whose example constrains the Params to validated identifiers and a closed value set and removes connection selection and free-form option strings from trigger-time input. Upgrading does not change a Dag already copied from the example; users who copied it should apply the same constraints to their copy.
Title Apache Airflow Teradata provider: SQL injection via unvalidated Dag Params in the compute-cluster example Dag
Weaknesses CWE-89
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Sep 29, 2026, 6:28 PM
Reserved
Sep 8, 2026, 2:46 PM
Status
Analyzed
Published
Sep 29, 2026, 10:17 AM
Modified
Oct 7, 2026, 7:56 PM