{"id":"BIT-airflow-2021-26559","summary":"CWE-284 Improper Access Control on Configurations Endpoint for the Stable API","details":"Improper Access Control on Configurations Endpoint for the Stable API of Apache Airflow allows users with Viewer or User role to get Airflow Configurations including sensitive information even when `[webserver] expose_config` is set to `False` in `airflow.cfg`. This allowed a privilege escalation attack. This issue affects Apache Airflow 2.0.0.","aliases":["CVE-2021-26559","GHSA-ffw3-6mp6-jmvj","PYSEC-2021-2"],"modified":"2026-09-08T08:45:24.774866056Z","published":"2024-03-06T10:59:45.964Z","database_specific":{"cpes":["cpe:2.3:a:apache:airflow:2.0.0:*:*:*:*:*:*:*","cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/02/17/1"},{"type":"ADVISORY","url":"https://lists.apache.org/thread.html/r3b3787700279ec361308cbefb7c2cce2acb26891a12ce864e4a13c8d%40%3Cusers.airflow.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rd142565996d7ee847b9c14b8a9921dcf80bc6bc160e3d9dca6dfc2f8%40%3Cannounce.apache.org%3E"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26559"}],"affected":[{"package":{"name":"airflow","ecosystem":"Bitnami","purl":"pkg:bitnami/airflow"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.0.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/airflow/BIT-airflow-2021-26559.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}],"schema_version":"1.9.0"}