CVE-2026-48587
LOW
2,3
Source: 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A
LOW
3,1
Source: 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none
Description
AI Translation Available
An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6.
`django.utils.cache.has_vary_header()` in Django does not strip leading or trailing whitespace from `Vary` response header values before comparison, which allows remote attackers to read cached responses via requests to URLs whose responses contain whitespace-padded Vary header values.
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 Navid Rezazadeh for reporting this issue.
1023
Incomplete Comparison with Missing Factors
IncompleteCommon Consequences
Security Scopes Affected:
Integrity
Access Control
Potential Impacts:
Alter Execution Logic
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
https://docs.djangoproject.com/en/dev/releases/security/
https://groups.google.com/g/django-announce
https://www.djangoproject.com/weblog/2026/jun/03/security-releases/