CVE-2023-39441: PYSEC-2026-2368 - Apache Airflow missing Certificate Validation

Quick answers

Is CVE-2023-39441 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2023-39441 being exploited in the wild.

How severe is CVE-2023-39441?

Low severity, with a CVSS score of 3.1, published 13 July 2026.

Which products and versions are affected?

apache-airflow (PyPI) ECOSYSTEM:introduced=0,fixed=2.7.0; apache-airflow-providers-imap (PyPI) ECOSYSTEM:introduced=0,fixed=3.3.0; apache-airflow-providers-smtp (PyPI) ECOSYSTEM:introduced=0,fixed=1.3.0.

Is there a fix for CVE-2023-39441?

Yes. apache-airflow (PyPI): upgrade to 2.7.0 or later; apache-airflow-providers-imap (PyPI): upgrade to 3.3.0 or later; apache-airflow-providers-smtp (PyPI): upgrade to 1.3.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Am I affected by CVE-2023-39441?

Check whether you run apache-airflow (PyPI), apache-airflow-providers-imap (PyPI) or apache-airflow-providers-smtp (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

• apache-airflow (PyPI): upgrade to 2.7.0 or later

  pip install "apache-airflow>=2.7.0"

• apache-airflow-providers-imap (PyPI): upgrade to 3.3.0 or later

  pip install "apache-airflow-providers-imap>=3.3.0"

• apache-airflow-providers-smtp (PyPI): upgrade to 1.3.0 or later

  pip install "apache-airflow-providers-smtp>=1.3.0"

Affected products

• apache-airflow (PyPI) ECOSYSTEM:introduced=0,fixed=2.7.0
• apache-airflow-providers-imap (PyPI) ECOSYSTEM:introduced=0,fixed=3.3.0
• apache-airflow-providers-smtp (PyPI) ECOSYSTEM:introduced=0,fixed=1.3.0

Identifiers

• CVE-2023-39441
• GHSA-5f35-pq34-c87q
• PYSEC-2026-1130
• PYSEC-2026-2368
• PYSEC-2026-2371