CVE-2026-7666
Essential information
- Published
- 03/06/2026 14:16
- Modified
- 04/06/2026 15:21
- Author
- —
- Creator
- —
- CVSS
- 2.3 LOW (v3) 2.3 LOW (v4.0)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
—
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 metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Privileges required
- —
- User interaction
- —
- Scope
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- HIGH
- Attack requirements
- PRESENT
- Privileges required
- NONE
- User interaction
- PASSIVE
- Confidentiality (V)
- LOW
- Confidentiality (S)
- NONE
- Integrity (V)
- NONE
- Integrity (S)
- NONE
- Availability (V)
- NONE
- Availability (S)
- NONE
- Exploit maturity
- NOT_DEFINED
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.
NVD status
- Status
- Undergoing Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| djangoproject / django | cpe:2.3:a:djangoproject:django:6.0:*:*:*:*:*:*:* |
| djangoproject / django | cpe:2.3:a:djangoproject:django:5.2:*:*:*:*:*:*:* |
| djangoproject / django | cpe:2.3:a:djangoproject:django:<5.2.15:*:*:*:*:*:*:* |
| djangoproject / django | cpe:2.3:a:djangoproject:django:<6.0.6:*:*:*:*:*:*:* |
| djangoproject / django | cpe:2.3:a:djangoproject:django:5.0:*:*:*:*:*:*:* |
| djangoproject / django | cpe:2.3:a:djangoproject:django:4.1:*:*:*:*:*:*:* |
| djangoproject / django | cpe:2.3:a:djangoproject:django:3.2:*:*:*:*:*:*:* |