CVE-2026-68982Apache Airflow: CeleryExecutor: forged callback workloads run on Celery workers without workload-token validation

Description

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/apache/airflow/pull/71192 patch
• https://www.cve.org/CVERecord?id=CVE-2020-11981 related
• https://lists.apache.org/thread.html/7t514l87nhjworv2ns22b8ltxr1f7rhg vendor-advisory