Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Apache Airflow Google provider: Path traversal via GCS object names → local/SFTP filesystem (GCSToSFTPOperator + GCSTimeSpanFileTransformOperator)
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L L N U N H H 8.1 .0070 50.2 —
AFFECTED
Product Versions Fixed
Apache Airflow Google provider unspecified —
TIMELINE
May 28 Reserved by apache
Jul 6 EXPLOIT PUBLISHED — CVE-2026-49297 (Apache Software Foundation Apache Airflow Google provider). Public exploit reference added.
Jul 6 Published (CNA: apache)
Description
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| May 28, 2026 | Reserved | Reserved by apache |
| July 6, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-49297 (Apache Software Foundation Apache Airflow Google provider). Public exploit reference added. |
| July 6, 2026 | Published | Published (CNA: apache) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Apache Software Foundation | Apache Airflow Google provider | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-49297 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.