CVE-2026-82337
Apache Airflow: DeadlineAlert fields bypass plugin-registration gate for scheduler-side deserialization
Apache Airflow rebuilt deadline alert fields through generic deserialization, which imports and instantiates the class named in the serialized Dag, in the scheduler and API server. A Dag author could cause classes within Airflow's deserialization allow list to be constructed in those processes with arguments they control. Deployments whose Dags use deadline alerts are affected.
This is an incomplete fix of CVE-2026-45360, which only hardened the reference field; deployments that applied that fix remain affected through the callback and interval fields.
Users of apache-airflow are recommended to upgrade to 3.4.0 or later.
What each source reports
CVE List No score
Apache Airflow: DeadlineAlert fields bypass plugin-registration gate for scheduler-side deserialization
Apache Airflow rebuilt deadline alert fields through generic deserialization, which imports and instantiates the class named in the serialized Dag, in the scheduler and API server. A Dag author could cause classes within Airflow's deserialization allow list to be constructed in those processes with arguments they control. Deployments whose Dags use deadline alerts are affected.
This is an incomplete fix of CVE-2026-45360, which only hardened the reference field; deployments that applied that fix remain affected through the callback and interval fields.
Users of apache-airflow are recommended to upgrade to 3.4.0 or later.
- Record
CVE-2026-82337- Weakness
- CWE-502
- Updated
- 2026-11-09
EUVDEUVD-2026-119902 No score
Apache Airflow rebuilt deadline alert fields through generic deserialization, which imports and instantiates the class named in the serialized Dag, in the scheduler and API server. A Dag author could cause classes within Airflow's deserialization allow list to be constructed in those processes with arguments they control. Deployments whose Dags use deadline alerts are affected.
This is an incomplete fix of CVE-2026-45360, which only hardened the reference field; deployments that applied that fix remain affected through the callback and interval fields.
Users of apache-airflow are recommended to upgrade to 3.4.0 or later.
- Record
EUVD-2026-119902- Updated
- 2026-11-09
GitHub AdvisoriesGHSA-5g3c-4f7x-qxvx No score
Apache Airflow rebuilt deadline alert fields through generic deserialization, which imports and...
Apache Airflow rebuilt deadline alert fields through generic deserialization, which imports and instantiates the class named in the serialized Dag, in the scheduler and API server. A Dag author could cause classes within Airflow's deserialization allow list to be constructed in those processes with arguments they control. Deployments whose Dags use deadline alerts are affected.
This is an incomplete fix of CVE-2026-45360, which only hardened the reference field; deployments that applied that fix remain affected through the callback and interval fields.
Users of apache-airflow are recommended to upgrade to 3.4.0 or later.
- Record
GHSA-5g3c-4f7x-qxvx- Weakness
- CWE-502
- Updated
- 2026-11-09
NVD No score
Apache Airflow rebuilt deadline alert fields through generic deserialization, which imports and instantiates the class named in the serialized Dag, in the scheduler and API server. A Dag author could cause classes within Airflow's deserialization allow list to be constructed in those processes with arguments they control. Deployments whose Dags use deadline alerts are affected.
This is an incomplete fix of CVE-2026-45360, which only hardened the reference field; deployments that applied that fix remain affected through the callback and interval fields.
Users of apache-airflow are recommended to upgrade to 3.4.0 or later.
- Record
CVE-2026-82337- Weakness
- CWE-502
- Updated
- 2026-11-09
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD | |
| aliases, references | GitHub Advisories, NVD | |
| aliases, published | EUVD | |
| first indexed | CVE List |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-82337 is a vulnerability with no CVSS score yet in Apache Software Foundation Airflow, published November 9, 2026. No source lists public exploit code. No source names a fixed version.