---
id: CVE-2026-81914
title: >-
  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
summary: >-
  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 apos…
severity: none
cwe:
  - CWE-943
vendor: Apache Software Foundation
product: apache-airflow-providers-google
affected:
  - apache-airflow-providers-google < 22.6.0
published: '2026-09-29'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T10:17:12.530'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81914'
references:
  - url: 'https://github.com/apache/airflow/pull/72166'
    label: security@apache.org
  - url: 'https://lists.apache.org/thread/90osv795jrqds051y7v3lcdzhsospooo'
    label: security@apache.org
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-29T10:31:36.313Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.