Is there an issue with embedthis goahead and appweb? An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. An HTTP POST request with a specially crafted "Host" header field may cause a NULL pointer dereference and thus cause a denial of service, as demonstrated by the lack of a trailing ']' character in an IPv6 address. View Analysis DescriptionWhere is the go ahead group head office? Head office. The Go-Ahead Group plc. 4 Matthew Parker Street. Westminster. London. SW1H 9NP. Tel: +44 (0) 20 7799 8999. Registered office. The Go-Ahead Group plc.How do i contact go ahead singapore for a coach? You can send us a Coach hire enquiry form. We look forward to hearing from you with feedback and suggestions to continuously improve our services or any general enquiries you may have about Go-Ahead Singapore. (from 7.30AM to 8PM daily).What are go aheads hours of operation? Our lost property lines are open 9am-4.30pm Monday-Saturday. For information and quotes on hiring coaches and buses. (open 8am-4pm Mon-Fri). You can send us a Coach hire enquiry form. We look forward to hearing from you with feedback and suggestions to continuously improve our services or any general enquiries you may have about Go-Ahead Singapore.