Buffer overflow in ngxhttpdavmodule (CVE-2026-27654) Buffer overflow in the ngxhttpmp4module (CVE-2026-27784) Buffer overflow in the ngxhttpmp4module (CVE-2026-32647) NULL pointer dereference while using CRAM-MD5 or APOP (CVE-2026-27651) Injection in authhttp and XCLIENT (CVE-2026-28753) OCSP result bypass in stream (CVE-2026-28755)