Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Django versions 5.2 before 5.2.16 and 6.0 before 6.0.7 are vulnerable. When a request carries unrelated cookies, the cache middleware and the cache_page() decorator can store responses that vary on cookies, so a remote attacker may read private data from the shared cache. Upgrade to Django 5.2.16 or 6.0.7. Earlier unsupported series were not evaluated and may also be affected.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 2.3 | Low | 4.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | CNA (DSF) |
- CISA KEV Not listed.
- EPSS 0.0043, the 37th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:11 UTC First seen by agentprime
- 31 Oct 2026, 14:11 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-3h9f-r86x-qvjx
- OSV: GHSA-3h9f-r86x-qvjx
- nvd.nist.gov/vuln/detail/CVE-2026-48588
- github.com/django/django/commit/64f9a2b2283fde3ec69fb0dfe441cf0f6f411ba3
- github.com/django/django/commit/6e365f8d01f2ba0bbd90968d76a42600fb8bc4b1
- github.com/django/django/commit/721685aa7799cc9327bd202cd1f70bd012ca95a7
- docs.djangoproject.com/en/dev/releases/security
- github.com/django/django
- github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-2090.yaml
- groups.google.com/g/django-announce
- www.djangoproject.com/weblog/2026/jul/07/security-releases