Directory Traversal Affecting airflow-3 package, versions <3.3.1-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.7% (51st percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-AIRFLOW3-19634561
  • published6 Sept 2026
  • disclosed6 Jul 2026

Introduced: 6 Jul 2026

CVE-2026-49297  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Minimos:latest airflow-3 to version 3.3.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream airflow-3 package and not the airflow-3 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Apache Airflow's Google provider operators GCSToSFTPOperator and GCSTimeSpanFileTransformOperator joined GCS object names returned by the bucket listing API directly to a destination filesystem path without normalisation or containment check. A user with write access to the source GCS bucket (typically a different trust principal than the DAG author — partner uploads, ingest-only service accounts, public-data buckets) could create an object whose name contains .. segments and cause the DAG run to write the downloaded blob outside the configured destination (the SFTP destination_path for GCSToSFTPOperator; the worker-local temp directory for GCSTimeSpanFileTransformOperator), enabling overwrite of arbitrary files on the SFTP server or the worker host. Affects deployments that ingest from buckets writable by less-trusted principals. Users are advised to upgrade to apache-airflow-providers-google 22.2.1 or later.