Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-41016

Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-295 Validación incorrecta de certificados
Fecha de publicación:
30/04/2026
Última modificación:
01/05/2026

Descripción

*** Pendiente de traducción *** 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.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:* 2.0.0 (incluyendo) 3.0.0 (excluyendo)