Detections
Analytics

Echo: apache-airflow-providers-smtp: security update to 3.0.0

medium Tenable Self-Hosted Container Security Plugin ID 457811

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-41016)

Solution

Update the apache-airflow-providers-smtp library and its related packages to version 3.0.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-41016

Plugin Details

Severity: Medium

ID: 457811

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-41016

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/15/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-41016