CVSS 4.0
2.3 lowCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-7666
Low (2.3) in djangoproject django. EPSS 0.1% chance of exploitation in the next 30 days. Fixed in django 5.2.15, 6.0.6.
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.
Severity
CVSS 3.1
3.1 lowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-31)
- CWE
- CWE-319
- Published
- Modified
- Record from
- the NVD, synced
Affected
- djangoproject:django
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-mm6v-q8q9-pgcf | PyPI | django | >=5.2 <5.2.15 | 5.2.15 |
| GHSA-mm6v-q8q9-pgcf | PyPI | django | >=6.0 <6.0.6 | 6.0.6 |
| PYSEC-2026-200 | PyPI | django | >=5.2 <5.2.15 >=6.0 <6.0.6 | 5.2.15, 6.0.6 |