{"id":"CVE-2020-17526","aliases":["BIT-airflow-2020-17526","GHSA-7mx5-x372-xh87","PYSEC-2020-22"],"url":"https://o3.security/vulnerability/CVE-2020-17526","summary":"Incorrect Session Validation in Apache Airflow","details":"Incorrect Session Validation in Apache Airflow Webserver versions prior to 1.10.14 with default config allows a malicious airflow user on site A where they log in normally, to access unauthorized Airflow Webserver on Site B through the session from Site A. This does not affect users who have changed the default value for `[webserver] secret_key` config.","published":"2020-12-21T17:15:12.507Z","modified":"2026-08-07T14:49:19.581881Z","cvss":{"score":7.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"apache-airflow","fixedVersion":"1.10.14"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/r466759f377651f0a690475d5a52564d0e786e82c08d5a5730a4f8352%40%3Cannounce.apache.org%3E"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/12/21/1"},{"type":"ADVISORY","url":"https://lists.apache.org/thread.html/rbeeb73a6c741f2f9200d83b9c2220610da314810c4e8c9cf881d47ef%40%3Cusers.airflow.apache.org%3E"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T14:49:19.581881Z"}}