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.
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.
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Fixes
Solution
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Workaround
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References
History
Mon, 09 Nov 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Apache Airflow: DeadlineAlert fields bypass plugin-registration gate for scheduler-side deserialization | |
| Weaknesses | CWE-502 | |
| References |
|
Projects
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-11-09T09:51:35.992Z
Reserved: 2026-08-28T16:01:53.743Z
Link: CVE-2026-82337
No data.
Status : Received
Published: 2026-11-09T10:17:11.467
Modified: 2026-11-09T10:17:11.467
Link: CVE-2026-82337
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OpenCVE Enrichment
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Weaknesses