Report: CVE-2026-41016 - Apache Airflow Providers SMTP: No certificate validation on SMTP STARTTLS connec

Report: CVE-2026-41016 - Apache Airflow Providers SMTP: No certificate validation on SMTP STARTTLS connec

CVE ID :CVE-2026-41016 Published : April 30, 2026, 10:16 a.m. | 56 minutes ago Description :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. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Published
April 30, 2026
Affected Product: Apache