PYSEC-2026-200

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2026-200.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-200
Aliases
Published
2026-06-03T14:16:47.087Z
Modified
2026-06-06T10:41:13.098774294Z
Severity
  • 2.3 (Low) CVSS_V4 - 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 Calculator
Summary
[none]
Details

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.

References

Affected packages

PyPI / django

Package

Name
django
View open source insights on deps.dev
Purl
pkg:pypi/django

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.2
Fixed
5.2.15
Introduced
6.0
Fixed
6.0.6

Affected versions

5.*
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10
5.2.11
5.2.12
5.2.13
5.2.14
6.*
6.0
6.0.1
6.0.2
6.0.3
6.0.4
6.0.5

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2026-200.yaml"