{"cve":"CVE-2026-45360","nvd":{"published":"2026-06-01T09:16:19.480","modified":"2026-07-21T19:10:00.107","status":"Analyzed","description":"Apache Airflow's scheduler-side deadline-reference decoder (`SerializedCustomReference.deserialize_reference`) imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG author whose code reaches the scheduler — the default on single-host deployments where the DAG bundle is importable from the scheduler process — could embed a custom `DeadlineReference` whose serialized form named an attacker-controlled module path, causing the scheduler to `import_string(...)` and instantiate that class with a live SQLAlchemy session attached. Affects deployments where DAG-author code is less trusted than the scheduler process. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","score":7.3},"cwes":["CWE-502"],"references":["https://github.com/apache/airflow/pull/66737","https://lists.apache.org/thread/q227dghjwgfz8xsxrf2pwpz4wk43zm83","http://www.openwall.com/lists/oss-security/2026/05/31/12"],"products":["apache:airflow"],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-45360","score":0.00676,"percentile":0.52247,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2r5m-76wx-56gx","url":"https://osv.dev/vulnerability/GHSA-2r5m-76wx-56gx","summary":"Apache Airflow Vulnerable to Deserialization of Untrusted Data","modified":"2026-09-10T03:51:07.640450880Z","packages":[{"ecosystem":"PyPI","name":"apache-airflow","purl":"pkg:pypi/apache-airflow","ranges":[">=3.2.0 <3.2.2"],"fixed":["3.2.2"]}]},{"id":"PYSEC-2026-186","url":"https://osv.dev/vulnerability/PYSEC-2026-186","summary":"","modified":"2026-07-13T16:45:06.486568978Z","packages":[{"ecosystem":"PyPI","name":"apache-airflow","purl":"pkg:pypi/apache-airflow","ranges":["<3.2.2"],"fixed":["3.2.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}