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CVE-2026-49297

Apache Apache-airflow-providers-google path traversal

8.1 HIGHPublic exploitEPSS 0.99%
  1. Published6 Jul 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected products

Apache Apache-airflow-providers-google< 22.2.1

Remediation

Fixed in
Apache Apache-airflow-providers-google≥ 22.2.1

References

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Frequently asked

Is CVE-2026-49297 being actively exploited?

CVE-2026-49297 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.99%.

How severe is CVE-2026-49297?

CVE-2026-49297 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.99% probability of exploitation.

Which products are affected by CVE-2026-49297?

Affected products include Apache Apache-airflow-providers-google.

How do I fix CVE-2026-49297?

Upgrade affected software to a fixed version, for example Apache Apache-airflow-providers-google 22.2.1 or later, then confirm no affected versions remain in your inventory.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.