PUBLISHED
2026-04-30 10:16
MODIFIED
2026-04-30 10:16
EPSS (Prob. Exploit)
0.27%
Top 82.0%
> DESCRIPTION
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.
> AFFECTED_PRODUCTS
ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.
> CWE DETAILED DESCRIPTIONS
CWE-295: Improper Certificate Validation - The product does not validate, or incorrectly validates, a certificate.
> GITHUB SECURITY ADVISORY
GHSA-x8mh-94wc-33gv
MODERATE
apache-airflow-providers-smtp: No certificate validation on SMTP STARTTLS connections in SMTP provider
AFFECTED PACKAGES:
PIP / apache-airflow-providers-smtp
>= 2.0.0, < 3.0.0
Fixed in: 3.0.0
> HISTORIQUE DES MODIFICATIONS
Première apparition
30/04/2026 10:16
Source: NVD
📊
ENRICHISSEMENT
01/05/2026 06:01
CWE
Champ modifié: Description CWE
Nouvelle valeur:
CWE-295: Improper Certificate Validation - The product does not validate, or incorrectly validates, a certificate.
Total des modifications: 1
Dernière mise à jour: 6 months ago