Improper Certificate Validation Affecting apache-airflow-core package, versions [,3.2.2rc1)
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-PYTHON-APACHEAIRFLOWCORE-17934386
- published10 Jul 2026
- disclosed1 Jun 2026
- creditFrancis Bergin
Introduced: 1 Jun 2026
CVE-2026-49267 (opens in a new tab)How to fix?
Upgrade apache-airflow-core to version 3.2.2rc1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Certificate Validation in the airflow.utils.email process. An attacker can intercept sensitive information, such as SMTP authentication credentials and email contents, by performing a man-in-the-middle attack during the STARTTLS handshake. This is only exploitable if the deployment is configured with smtp_starttls=True and smtp_ssl=False, and the SMTP relay is accessible over a less-trusted network segment than the worker.