{"affected":[{"defaultStatus":"unaffected","ecosystem":"pypi","packageName":"apache-airflow-core","product":"Apache Airflow","source":"CNA: apache","vendor":"Apache Software Foundation","versions":[{"lessThan":"3.3.1","status":"affected","version":"3.3.0","versionType":"semver"}]}],"cveId":"CVE-2026-67260","cwes":["CWE-502"],"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.","epss":{"date":"2026-11-02","percentile":0.55896,"score":0.00779},"exploits":[],"kev":null,"metrics":[{"score":7.3,"severity":"high","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"}],"modifiedAt":1793689149280,"publishedAt":1786548782858,"references":[{"source":"CNA: apache","tags":["patch"],"url":"https://github.com/apache/airflow/pull/70685"},{"source":"CNA: apache","tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/vygr0fh82cjzjp5k4vtfmboxryvm3lyn"},{"source":"CNA: apache","tags":["related"],"url":"https://www.cve.org/CVERecord?id=CVE-2026-58076"}],"remediation":[{"kind":"fix","source":"CNA: apache","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/apache/airflow/pull/70685"}],"revision":"bdfd7a420f6c86dc132c32664018cf62a82c565d618e143a33fa6c28c05c129d","sources":[{"modifiedAt":1793689149280,"name":"CNA: apache","retrievedAt":1793689775642,"url":"https://www.cve.org/CVERecord?id=CVE-2026-67260"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793689785000,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-67260"}],"ssvc":{"assessedAt":1786550414166,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserialization","updatedAt":1793689785000}