Improper Certificate Validation Affecting apache-airflow-providers-smtp package, versions [2.0.0rc1,3.0.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published30 Apr 2026
- disclosed30 Apr 2026
- creditFrancis Bergin
Introduced: 30 Apr 2026
CVE-2026-41016 (opens in a new tab)How to fix?
Upgrade apache-airflow-providers-smtp to version 3.0.0 or higher.
Overview
apache-airflow-providers-smtp is a Provider for Apache Airflow. Implements apache-airflow-providers-smtp package
Affected versions of this package are vulnerable to Improper Certificate Validation in the SmtpHook when establishing a STARTTLS connection. An attacker can intercept SMTP credentials by performing a man-in-the-middle attack and presenting a malicious certificate.