Kwi-PHP-FPM, umphathi wenkqubo ye-FastCGI ebandakanyiwe kwi-PHP engundoqo yokusabalalisa iqala ngesebe le-5.3, umngcipheko obalulekileyo we-CVE-2021-21703 uchongiwe, ovumela umsebenzisi ongenalungelo lokubamba ukuba enze ikhowudi ngamalungelo engcambu. Ingxaki yenzeka kwiiseva ezisebenzisa i-PHP-FPM, edla ngokusetyenziswa ngokubambisana ne-Nginx, ukuqhuba izikripthi ze-PHP. Abaphandi abachonge ingxaki bakwazi ukulungiselela iprototype esebenzayo yokuxhaphaza.