Bug 2569023 (CVE-2026-68982)

Summary: CVE-2026-68982 apache-airflow: apache-airflow: Arbitrary code execution via unauthenticated CeleryExecutor callbacks
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Apache Airflow. The CeleryExecutor component executes callback workloads without validating their authentication tokens. An attacker with write access to the underlying message broker can inject forged callback tasks, resulting in arbitrary code execution across worker nodes without requiring Airflow credentials.
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Description OSIDB Bzimport 2026-11-09 10:01:40 UTC
Apache Airflow's CeleryExecutor ran callback workloads (`ExecuteCallback`, used for deadline-alert callbacks) without validating the workload's authentication token. Anyone able to write to the Celery broker could enqueue a forged callback and execute arbitrary code on every CeleryExecutor worker, without Airflow credentials. Deployments using the CeleryExecutor are affected.

Users are advised to upgrade to apache-airflow 3.4.0 or later, in which the worker claims the callback through the Execution API, validating the token, before running it.