{"id":"CVE-2026-75158","title":"Apache Airflow's `/assets/events` API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read","summary":"Apache Airflow's `/assets/events` API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read. Any authenticated user holding asset-read access could therefore e…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-200"],"vendor":"apache","product":"airflow","affected":["airflow < 3.3.2"],"patched":["airflow 3.3.2"],"published":"2026-09-21","updated":"2026-09-25","sourceUpdated":"2026-09-25T13:58:05.620","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-75158","references":[{"url":"https://github.com/apache/airflow/pull/71741","label":"security@apache.org"},{"url":"https://lists.apache.org/thread/rx5lg86l0qkjl2s7dtmpqxjq0xplr4fy","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/21/3","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org","osv","pip"],"epss":0.00636,"epssPercentile":0.50294,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T15:26:44.311869Z"},"ingestedAt":"2026-09-21T14:38:56.366Z","aliases":["PYSEC-2026-3988","BIT-airflow-2026-75158"],"ecosystem":"pip","slug":"CVE-2026-75158","body":"## Overview\n\nApache Airflow's `/assets/events` API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read. Any authenticated user holding asset-read access could therefore enumerate asset events — including the source Dag ID, task ID, run ID and event timestamps — for Dags they have no permission to see. Because the filter was also absent from the count query, `total_entries` and pagination disclosed the existence of hidden Dags even without inspecting individual rows. Deployments are affected whenever per-Dag access control is used to separate teams or tenants; no special configuration is required. Upgrade to apache-airflow 3.3.2 or later.\n\n## Affected\n\n- `airflow < 3.3.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `airflow 3.3.2`\n\n## Package advisory (CVE-2026-75158)\n\nAffected packages:\n\n- `apache-airflow < 3.3.2`\n\nPatched in:\n\n- `apache-airflow 3.3.2`\n\nSource: https://osv.dev/vulnerability/PYSEC-2026-3988","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":208547,"id":"CVE-2026-75158","ts":1790008114383,"field":"cvss","old":null,"new":"4.3"},{"seq":208546,"id":"CVE-2026-75158","ts":1790008114383,"field":"severity","old":"none","new":"medium"}]}