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

Source: https://junglewise.ai/threats/cve-2023-39441-apache-airflow-missing-certificate-validation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-13  
License: CC BY 4.0 with a link back

CVE-2023-39441 · Severity: low · CVSS 3.1 · Published 2026-07-13

Apache Airflow missing Certificate Validation

Technologies: [apache-airflow (PyPI)](https://junglewise.ai/threats/technologies/apache-airflow). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## 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

  ```sh
  pip install "apache-airflow>=2.7.0"
  ```

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

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

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

  ```sh
  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

## Related threats

- [Apache Airflow Core API logout incomplete token revocation](https://junglewise.ai/threats/cve-2026-86473-apache-airflow-the-core-api-logout-endpoint-revokes-only-a)
- [Apache Airflow authentication bypass via session cookie precedence](https://junglewise.ai/threats/cve-2026-82355-when-a-request-to-the-airflow-core-api-carries-both-a-session)
- [Apache Airflow information disclosure in /assets/events API](https://junglewise.ai/threats/cve-2026-75158-apache-airflow-s-assets-events-api-returned-asset-events-for)
- [Apache Airflow authorization bypass in asset materialization and XCom endpoints](https://junglewise.ai/threats/cve-2026-68971-apache-airflow-authorization-bypass-in-asset-materialization-and)
- [Apache Airflow Task SDK variable masking bypass for list-shaped values](https://junglewise.ai/threats/cve-2026-68970-apache-airflow-task-sdk-variable-masking-bypass-for-list-shaped)