python-django: An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15
CVE-2026-7666 is fixed in 2 products on 1 platform, first by SUSE-SU-2026:2318-1, released June 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-Django · opensuse-leap 16.0 | 5.2.4-bp160.9.1 | OPENSUSE-SU-2026:20937-1 | Jun 10, 2026 |
| python-Django · sles 15.7 | 4.2.11-150600.3.59.1 | SUSE-SU-2026:2318-1 | Jun 9, 2026 |
| python-django · Debian 14 | 3:5.2.15-1 | DEBIAN-CVE-2026-7666 | Jun 25, 2026 |
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