Cleartext transmission of sensitive information in Django - CVE-2026-7666
Published: June 4, 2026
Vulnerability identifier: #VU133364
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-7666
CWE-ID: CWE-319
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Django Software Foundation
Affected software:
Django
Django
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to the "django.core.mail.backends.smtp.EmailBackend" fails to prevent reuse of a partially-initialized connection after a failed "STARTTLS" handshake. A remote attacker can gain access to sensitive data.
How to mitigate CVE-2026-7666
Install updates from vendor's website.