CVE-2026-41016

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.

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Produits concernés

• Apache Software Foundation Apache Airflow Providers SMTP
• Apache airflow

Scores CVSS

Faiblesses (CWE)

• CWE-295

Références

• https://github.com/apache/airflow/pull/65346 Issue TrackingPatch
• https://lists.apache.org/thread/gb202qy5r31bgdd3d51d7s5o1jh40kc4 Mailing ListVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories