MEDIUMPyPI →
Django: UpdateCacheMiddleware may disclose cached responses due to case-sensitive Cache-Control handling
Django: UpdateCacheMiddleware may disclose cached responses due to case-sensitive Cache-Control handling
Affected packages
- django— before 5.2.15
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-8404
- https://github.com/django/django/commit/366d9ae6e8d1469c04e9ebdc1bcd098fc14a3b1e
- https://github.com/django/django/commit/b4330259ffbe1a031ed14daab1f35697460f10f2
- https://github.com/django/django/commit/d618d7ae4fec727d5b582bd24f803c28d17bf7cd
- https://docs.djangoproject.com/en/dev/releases/security
- https://github.com/django/django
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-201.yaml
- https://groups.google.com/g/django-announce
- https://www.djangoproject.com/weblog/2026/jun/03/security-releases
Structured record: https://osv.dev/vulnerability/GHSA-8cjm-8mp7-r2xf
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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