CVE-2026-81914: Apache Airflow's Google provider built Google Drive search expressions by interpolating file and folder names directly into single-quoted string literals…

PriorityP424medium4.3CVSS 3.1

AVNACLPRLUINSUCLINAN

EPSS

0.51%

42.6th percentile

Apache Airflow's Google provider built Google Drive search expressions by interpolating file and folder names directly into single-quoted string literals, without escaping the quote character that delimits them. A name containing an apostrophe therefore terminated the literal early and appended clauses of the attacker's choosing to the query. The names are frequently not written by the Dag author. In a wildcard `gcs_to_gdrive` transfer they come from the source bucket listing, so anyone able to create objects in that bucket controls them — typically an external data producer or an ingest-only service account, a different trust principal from the Dag author. An injected clause can broaden the match and so steer which file or folder the hook resolves: an upload can be directed into a folder the attacker named, and, because downloads select the most recently modified match, a download can return a file they placed rather than the one the Dag asked for. Affects deployments passing externally-sourced names to the Google Drive hook, including wildcard `gcs_to_gdrive` transfers from buckets writable by less-trusted principals. Users are advised to upgrade to `apache-airflow-providers-google` `22.6.0` or later, which escapes quote and backslash characters in every value interpolated into a Drive query.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
apache	apache-airflow-providers-google	< 22.6.0	22.6.0
apache_software_foundation	apache_airflow_google_provider	< 22.6.0	22.6.0

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