Hazard

Is CVE-2020-13927 being exploited?

Weaponised and widely attempted

Reliable public exploit code exists, or mass exploitation attempts are probable. Patch inside days, not weeks.

Apache Airflow's Experimental API Authentication Bypass

Apache · Airflow's Experimental API

CVSS 9.8 EPSS 100% 1 public exploit Fix deadline passed 18 July 2022

What it is

The previous default setting for Airflow's Experimental API was to allow all API requests without authentication.

Why we say that

  • EPSS puts exploitation in the next 30 days at 100%
  • 1 public exploit published
  • CISA's federal remediation deadline (2022-07-18) has passed
  • CVSS 9.8 critical
  • Listed in the CISA Known Exploited Vulnerabilities catalogue

Every line above comes from a named public source. Where the evidence is thin, we say so rather than inventing confidence — see methodology.

What to do

Apply updates per vendor instructions.

Public exploit code

Indexed from Exploit-DB. Presence of code raises urgency; absence does not mean safety.

What it costs when this goes wrong

This is where UK enforcement meets the vulnerability record. Where an unfixed vulnerability leads to a breach, the ICO treats it as a security failure under UK GDPR. Recent cases:

All UK cases caused by unpatched software →