Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U H H H 9.8 .9978 100.0 YES
AFFECTED Product Versions Fixed Apache Airflow Apache Airflow <1.10.11 – —
TIMELINE Jun 8 Reserved by apache Nov 10 Published (CNA: apache) Jan 18 Added to CISA KEV, remediation due 2022-07-18
The previous default setting for Airflow's Experimental API was to allow all API requests without authentication, but this poses security risks to users who miss this fact. From Airflow 1.10.11 the default has been changed to deny all requests by default and is documented at https://airflow.apache.org/docs/1.10.11/security.html#api-authentication. Note this change fixes it for new installs but existing users need to change their config to default `[api]auth_backend = airflow.api.auth.backend.deny_all` as mentioned in the Updating Guide: https://github.com/apache/airflow/blob/1.10.11/UPDATING.md#experimental-api-will-deny-all-request-by-default
| Date | Event | Detail |
|---|---|---|
| June 8, 2020 | Reserved | Reserved by apache |
| November 10, 2020 | Published | Published (CNA: apache) |
| January 18, 2022 | KEV ADDED | Added to CISA KEV, remediation due 2022-07-18 |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | Apache Airflow | — | Apache Airflow <1.10.11 | — |
Authoritative record: CVE-2020-13927 at cve.org
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-13927 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
