CVE-2020-13927
Authentication bypass in Apache Airflow
Description
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
How to fix CVE-2020-13927
To remediate CVE-2020-13927, upgrade the affected package to a fixed version below.
- —upgrade to 1.10.11 or later
- —upgrade to 1.10.11 or later
- —upgrade to 1.10.11 or later
Is CVE-2020-13927 being exploited?
Yes — CVE-2020-13927 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (3)
- from 0, < 1.10.11
- from 0, < 1.10.11
- from 0, < 1.10.11
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A |
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H |