CVEvulnerability
CVE-2026-7666
2.3 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-03
- Last modified
- 2026-07-21
- Assigner
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- CVSS 4.0 (6a34fbeb-21d4-45e7-8e0a-62b95bc12c92)
- 2.3 LOW — CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 (6a34fbeb-21d4-45e7-8e0a-62b95bc12c92)
- 3.1 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-319
Description
An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15.
`django.core.mail.backends.smtp.EmailBackend` in Django fails to prevent reuse of a partially-initialized connection after a failed `STARTTLS` handshake when `fail_silently=True`, which allows on-path network attackers to read email content via cleartext interception.
Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.
Django would like to thank Kasper Dupont for reporting this issue.
Affected configurations
• djangoproject django (>= 5.2 < 5.2.15)
• djangoproject django (>= 6.0 < 6.0.6)
Related
Weakness · CWE (1)
- CWE-319 Cleartext Transmission of Sensitive Information weakness
References
- https://docs.djangoproject.com/en/dev/releases/security/ Patch, Vendor Advisory
- https://groups.google.com/g/django-announce Release Notes
- https://www.djangoproject.com/weblog/2026/jun/03/security-releases/ Patch, Vendor Advisory