apache-airflow-providers-smtp: No certificate validation on SMTP STARTTLS connections in SMTP provider

TRUNG BÌNH 5.9CVE-2026-41016 · GHSA-x8mh-94wc-33gv · PYSEC-2026-24 · Công bố 30/04/2026 · cập nhật 26/10/2026

Tóm tắt nhanh

CVE-2026-41016 là lỗ hổng mức TRUNG BÌNH (CVSS 5.9) ảnh hưởng apache-airflow-providers-smtp, airflow (apache).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.27%, cao hơn 19.0% các lỗ hổng khác.
Cách xử lý: cập nhật lên 3.0.0 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
apache-airflow-providers-smtp PyPI	`≥ 2.0.0, < 3.0.0`	`3.0.0`
airflow apache	`≥ 2.0.0, < 3.0.0`	`3.0.0`

Mô tả

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.

Mô tả của NVD

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.