by Kastro
Paper/Archive/CVE-2026-68982

CVE-2026-68982

Apache Software Foundation Apache Airflow — Apache Airflow: CeleryExecutor: forged callback workloads run on Celery workers without workload-token validation

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
37
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 40.1.401 × 208.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Apache Airflow< 3.4.03.4.0CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchgithub.com/apache/airflow/pull/71192refcve.org/CVERecord?id=CVE-2020-11981advisorylists.apache.org/thread.html/7t514l87nhjworv2ns22b8ltxr1f7rhg