{"action":"Upgrade apache-airflow to 3.3.1 or later.","affected":[{"fixed":"3.3.1","introduced":"0"}],"component":"apache-airflow","cve_ids":["CVE-2026-59242"],"ecosystem":"PyPI","epss":0.00529,"exploited":false,"fixed_versions":["3.3.1"],"ghsa_id":"GHSA-fcmm-42r9-mmmm","id":"tcs_01M5KH94FFD0N6W2B74R5QKSRG","modified_at":"2026-10-15T14:45:08.237804283Z","published_at":"2026-08-12T16:17:09.067Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3992","http://www.openwall.com/lists/oss-security/2026/08/12/6","https://lists.apache.org/thread/dm0520yhh4mn7qknyoh45r2w6c5qg2mg","https://github.com/apache/airflow/pull/69378","https://github.com/advisories/GHSA-fcmm-42r9-mmmm"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"PYSEC-2026-3992","url":"https://osv.dev/vulnerability/PYSEC-2026-3992"}],"summary":"Apache Airflow's XCom `GET /api/v2/{...}/xcomEntries/{key}?deserialize=true` endpoint passed a string-literal payload through `BaseXCom.deserialize_value` without the `_check_forbidden_xcom_keys` guar"}