$ cve CVE-2020-13927 JSON

CVE-2020-13927 KEV EXPLOIT

9.8

CRITICAL · CVSS 3.1 · EPSS 99.8% (pctl 100)

Patch first

On CISA KEV — known exploited in the wild, due 2022-07-18.

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

Scoring

CVSS	9.8 (CRITICAL, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS	99.78% — more likely to be exploited than 100% of all CVEs
Weakness	CWE-306
On CISA KEV	yes — remediate by 2022-07-18
Public exploit	yes
Published	2020-11-10
Last modified	2026-06-17

CISA KEV

Name	Apache Airflow's Experimental API Authentication Bypass
Added	2022-01-18
Due	2022-07-18
Vendor / product	Apache / Airflow's Experimental API
Ransomware use	none reported

Affected (1)

Vendor	Product
apache	airflow

Public exploits

Source	Title	Date
exploit-db	Apache Airflow 1.10.10 - 'Example Dag' Remote Code Execution	2021-06-02

References

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