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Apache Airflow has no certificate validation on SMTP STARTTLS connections

🗓️ 01 Jun 2026 09:31:15Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 3 Views

Airflow may skip SMTP certificate validation when smtp_starttls is true and smtp_ssl is false; upgrade to Apache Airflow 3.2.2+.

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09 Jul 2026 21:11Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.15.9
EPSS0.00185
SSVC
3