Apache Software Foundation Apache Airflow Providers SMTP vulnerabilities

1 vulnerability

Known vulnerabilities in Apache Software Foundation Apache Airflow Providers SMTP, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

5.9CVE-2026-41016apache software foundationapache airflow providers smtp+6
EPSS score
0.27%
Apache Airflow's SMTP provider `SmtpHook` called Python's `smtplib.SMTP.starttls()` without an SSL context, so no certificate validation was performed on the TLS upgrade. A man-in-the-middle between the Airflow worker and the SMTP server could present a self-signed certificate, complete the STARTTLS upgrade, and capture the SMTP credentials sent during the subsequent `login()` call. Users are advised to upgrade to the `apache-airflow-providers-smtp` version that contains the fix.