Is CVE-2026-41016 actively exploited?

No active exploitation of CVE-2026-41016 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-41016 be exploited remotely?

Yes. CVE-2026-41016 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-41016?

CVE-2026-41016 has a CVSS score of 5.9 (MEDIUM).

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MEDIUM

CVE-2026-41016

CWE-295Published: April 30, 2026· Updated: May 1, 2026

5.9

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:13.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-41016 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.9.