title: Apache Airflow SMTP Provider, Apache Airflow IMAP Provider, Apache Airflow: SMTP/IMAP client components allowed MITM due to missing Certificate Validation
description: Apache Airflow SMTP Provider before 1.3.0, Apache Airflow IMAP Provider before 3.3.0, and Apache Airflow before 2.7.0 are affected by the Validation of OpenSSL Certificate vulnerability.
The default SSL context with SSL library did not check a server's X.509 certificate.  Instead, the code accepted any certificate, which could result in the disclosure of mail server credentials or mail contents when the client connects to an attacker in a MITM position.
Users are strongly advised to upgrade to Apache Airflow version 2.7.0 or newer, Apache Airflow IMAP Provider version 3.3.0 or newer, and Apache Airflow SMTP Provider version 1.3.0 or newer to mitigate the risk associated with this vulnerability
problem types: CWE-295 Improper Certificate Validation
affected:
{
defaultStatus: unaffected
product: Apache Airflow SMTP Provider
vendor: Apache Software Foundation
versions:
lessThan: 1.30, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: Apache Airflow IMAP Provider
vendor: Apache Software Foundation
versions:
lessThan: 3.3.0, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: Apache Airflow
vendor: Apache Software Foundation
versions:
lessThan: 2.7.0, status: affected, version: 0, versionType: semver
}
metrics:
other: [
content: {'text': 'moderate'}
type: Textual description of severity
]