CVE-2026-41016
Apache Airflow Providers SMTP: No certificate validation on SMTP STARTTLS connections in SMTP provider
Vexday Risk Score
13Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 5.9EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Ciclo de vida
30 abr 2026Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Produtos afetados
Apache Software Foundation · Apache Airflow Providers SMTPQuer saber se a sua infraestrutura está exposta a isto?
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