https://docs.djangoproject.com/en/5.2/releases/5.2.15/
https://www.djangoproject.com/weblog/2026/jun/03/security-releases/
Fixes:
CVE-2026-6873, CVE-2026-7666, CVE-2026-8404, CVE-2026-35193,
CVE-2026-48587
(cherry picked from commit 3b5d44bff5)
(cherry picked from commit 32ff989879ca372003d44ee8421d81f3353c8ac0)