{"items":[{"id":"NVI-00013155","kind":"vulnerability","title":"Apache Airflow XCom API permits unsafe deserialization through JSON string literals","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-fcmm-42r9-mmmm","CVE-2026-59242"],"plain_summary":"GitHub lists this reviewed advisory for apache-airflow. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-23379f566d65a193a8fbf58cc122f0a2"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-02T23:12:56.000Z","value":"5.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-79a4e4ba3eadafa4bdf24bbdc89e93a2"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.529%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.44753. Missing scores are unknown.","source_id":"sr-23379f566d65a193a8fbf58cc122f0a2"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-79a4e4ba3eadafa4bdf24bbdc89e93a2","url":"https://github.com/advisories/GHSA-fcmm-42r9-mmmm","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-fcmm-42r9-mmmm","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:40:00.567Z"},{"id":"sr-23379f566d65a193a8fbf58cc122f0a2","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-59242","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.859Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-79a4e4ba3eadafa4bdf24bbdc89e93a2"],"technology":"apache-airflow","known_exclusions":[],"conditions_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` guard, allowing an authenticated API user with XCom write-and-read access to instantiate arbitrary `airflow.*` classes on the API server (CWE-502). An authenticated user who can write an XCom value and then read it back with `deserialize=true` triggers the unsafe instantiation. Users are advised to upgrade to apache-airflow 3.3.1 or later, which rejects reserved XCom serialization keys submitted as JSON string literals.","public_affected_ranges":["< 3.3.1"]}],"null_published_at":"2026-11-07T14:01:58.742Z","source_updated_at":"2026-10-02T23:12:56.000Z","source_disclosed_at":"2026-08-12T18:31:18.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T01:40:00.567Z"},{"id":"NVI-00013155","kind":"vulnerability","title":"Apache Airflow XCom API permits unsafe deserialization through JSON string literals","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-fcmm-42r9-mmmm","CVE-2026-59242"],"plain_summary":"GitHub lists this reviewed advisory for apache-airflow. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-79a4e4ba3eadafa4bdf24bbdc89e93a2"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-02T23:12:56.000Z","value":"5.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-79a4e4ba3eadafa4bdf24bbdc89e93a2"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-79a4e4ba3eadafa4bdf24bbdc89e93a2","url":"https://github.com/advisories/GHSA-fcmm-42r9-mmmm","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-fcmm-42r9-mmmm","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:40:00.567Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-79a4e4ba3eadafa4bdf24bbdc89e93a2"],"technology":"apache-airflow","known_exclusions":[],"conditions_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` guard, allowing an authenticated API user with XCom write-and-read access to instantiate arbitrary `airflow.*` classes on the API server (CWE-502). An authenticated user who can write an XCom value and then read it back with `deserialize=true` triggers the unsafe instantiation. Users are advised to upgrade to apache-airflow 3.3.1 or later, which rejects reserved XCom serialization keys submitted as JSON string literals.","public_affected_ranges":["< 3.3.1"]}],"null_published_at":"2026-11-01T07:29:12.926Z","source_updated_at":"2026-10-02T23:12:56.000Z","source_disclosed_at":"2026-08-12T18:31:18.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T01:40:00.567Z"}],"next_cursor":null,"snapshot_revision":"42594"}