HTTP response splitting. (CVE-2024-42516) SSRF with modheaders setting Content-Type header. (CVE-2024-43204) modssl error log variable escaping. (CVE-2024-47252) modproxyhttp2 denial of service. (CVE-2025-49630) modssl access control bypass with session resumption. (CVE-2025-23048) modssl TLS upgrade attack. (CVE-2025-49812) HTTP/2 DoS by Memory Increase. (CVE-2025-53020) 'RewriteCond expr' always evaluates to true in 2.4.64. (CVE-2025-54090) You will find the update delay sometimes causes a failure; just restart the service after the update.