CVE-2026-111395
Published:November 09, 2026
Updated:November 09, 2026
Apache Airflow did not reject reserved serialization keys inside a Dag run's "conf". A user allowed to trigger a Dag that uses a deadline alert with an asynchronous callback could pass a "conf" that, once the deadline was missed, either crashed the scheduler repeatedly or was rebuilt into objects inside the Triggerer. Users are advised to upgrade to apache-airflow 3.4.0 or later.
Affected Packages
apache-airflow-core (CONDA):
Affected version(s) >=3.2.1 <3.4.0Fix Suggestion:
Update to version 3.4.0https://github.com/apache/airflow.git (GITHUB):
Affected version(s) >=3.2.0b1 <3.4.0 || =3.4.0b1 <3.4.0Fix Suggestion:
Update to version 3.4.0apache-airflow-core (PYTHON):
Affected version(s) >=3.2.0b1 <3.4.0 || =3.4.0b1 <3.4.0Fix Suggestion:
Update to version 3.4.0Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
HIGH
Weakness Type (CWE)
Deserialization of Untrusted Data