CWE-1056
ProhibitedInvokable Control Element with Variadic Parameters
Abstraction: Base · Status: Incomplete
A named-callable or method control element has a signature that supports a variable (variadic) number of parameters or arguments.
1 vulnerability references this CWE, most recent first.
GHSA-HHX9-P69V-CX2J
Vulnerability from github – Published: 2021-04-30 17:34 – Updated: 2025-10-22 17:56The 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
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "apache-airflow"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.11"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-13927"
],
"database_specific": {
"cwe_ids": [
"CWE-1056",
"CWE-1188",
"CWE-287",
"CWE-306"
],
"github_reviewed": true,
"github_reviewed_at": "2021-04-20T19:30:46Z",
"nvd_published_at": "2020-11-10T16:15:00Z",
"severity": "CRITICAL"
},
"details": "The previous default setting for Airflow\u0027s 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",
"id": "GHSA-hhx9-p69v-cx2j",
"modified": "2025-10-22T17:56:14Z",
"published": "2021-04-30T17:34:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13927"
},
{
"type": "WEB",
"url": "https://github.com/apache/airflow/pull/9611"
},
{
"type": "WEB",
"url": "https://github.com/apache/airflow/commit/180bca4f993b7b778a8d2c65d3d357652218922b"
},
{
"type": "WEB",
"url": "https://github.com/apache/airflow/commit/9e305d6b810a2a21e2591a80a80ec41acb3afed0"
},
{
"type": "WEB",
"url": "https://airflow.apache.org/docs/apache-airflow/1.10.11/security.html#api-authentication"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-hhx9-p69v-cx2j"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/airflow"
},
{
"type": "WEB",
"url": "https://github.com/apache/airflow/releases/tag/1.10.11"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2020-18.yaml"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r23a81b247aa346ff193670be565b2b8ea4b17ddbc7a35fc099c1aadd%40%3Cdev.airflow.apache.org%3E"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-13927"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/162908/Apache-Airflow-1.10.10-Remote-Code-Execution.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/174764/Apache-Airflow-1.10.10-Remote-Code-Execution.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Authentication bypass in Apache Airflow"
}
No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.