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Wed, 12 Aug 2026 16:30:00 +0000
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cvssV3_1
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Wed, 12 Aug 2026 15:45:00 +0000
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| Description | Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new `awaiting_input` task state swept by the scheduler. That sweep deserializes the task instance's `next_kwargs` without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an arbitrary module import and object instantiation inside the scheduler process, or terminate the scheduler job. No non-default configuration is required: the sweep runs unconditionally every 15 seconds, and the default `allowed_deserialization_classes` setting does not cover this code path. Versions before 3.3.0 are not affected, because human-in-the-loop tasks deferred onto the triggerer instead. This is a different code path from CVE-2026-58076, which covers the same unguarded exception-node deserialization reached elsewhere — deployments that applied that fix must upgrade for this issue as well. Users are advised to upgrade to apache-airflow 3.3.1 or later. | |
| Title | Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserialization | |
| Weaknesses | CWE-502 | |
| References |
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Subscriptions
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-08-12T16:25:35.884Z
Reserved: 2026-07-29T10:04:08.525Z
Link: CVE-2026-67260
Updated: 2026-08-12T16:00:03.271Z
Status : Received
Published: 2026-08-12T16:17:14.813
Modified: 2026-08-12T17:17:29.967
Link: CVE-2026-67260
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OpenCVE Enrichment
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CWE-502
Deserialization of Untrusted Data