Improper Certificate Validation Affecting airflow-3 package, versions <3.2.2-r0
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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Test your applications- Snyk IDSNYK-MINIMOSLATEST-AIRFLOW3-17093254
- published30 May 2026
- disclosed30 Apr 2026
Introduced: 30 Apr 2026
NewCVE-2026-41016 (opens in a new tab)How to fix?
Upgrade Minimos:latest airflow-3 to version 3.2.2-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream airflow-3 package and not the airflow-3 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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.
References
- https://www.cve.org/CVERecord?id=CVE-2026-41016
- https://github.com/advisories/GHSA-x8mh-94wc-33gv
- https://osv.dev/vulnerability/MINI-9xpc-q8vq-2qch
- https://osv.dev/vulnerability/CVE-2026-41016
- https://github.com/apache/airflow/pull/65346
- https://lists.apache.org/thread/gb202qy5r31bgdd3d51d7s5o1jh40kc4