CVE-2026-48588 Details
Description
An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16. `UpdateCacheMiddleware` and the `cache_page()` decorator cache responses that vary on cookies when the incoming request carries unrelated cookies, which allows remote attackers to read private data from the shared cache. 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 Chris Whyland for reporting this issue.
A header injection vulnerability has been identified in Django versions 6.0 prior to 6.0.7 and 5.2 prior to 5.2.16. The issue arises because the DomainNameValidator accepted newlines in domain names, which could be exploited to inject headers. While Django's HttpResponse prohibits newlines in headers, this vulnerability could still be exploited in other contexts where the validator is used without the default newline stripping provided by CharField.
Users can upgrade to Django 6.0.7 or 5.2.16 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 7, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://docs.djangoproject.com/en/dev/releases/security/ | Django Software Foundation | PatchVendor Advisory |
| https://groups.google.com/g/django-announce | Django Software Foundation | Release Notes |
| https://www.djangoproject.com/weblog/2026/jul/07/security-releases/ | Django Software Foundation | Vendor AdvisoryPatch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-524 | Use of Cache Containing Sensitive Information | Django Software Foundation |
Affected Products
| Product | Versions |
|---|---|
| djangoproject django | >= 5.2, < 5.2.16 >= 6.0, < 6.0.7 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 9, 2026 | Initial Analysis | [email protected] |
| Jul 7, 2026 | CVE Modified | CISA-ADP |
| Jul 7, 2026 | New CVE Received | Django Software Foundation |