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CVE-2026-81914
Published:September 29, 2026
Updated:October 09, 2026
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 Packages
apache-airflow-providers-google (CONDA):
Affected version(s) >=2.0.0 <22.6.0
Fix Suggestion:
Update to version 22.6.0
https://github.com/apache/airflow.git (GITHUB):
Affected version(s) >=providers-google/1.0.0 <providers-google/22.6.0
Fix Suggestion:
Update to version providers-google/22.6.0
apache-airflow-providers-google (PYTHON):
Affected version(s) >=1.0.0 <22.6.0
Fix Suggestion:
Update to version 22.6.0
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Special Elements in Data Query Logic
EPSS
Base Score:
0.51