Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting. This issue affects B2B: before 04.06.2025.CreditsBerat ARSLANPriente Software Inc.Referenceshttps://www.usom.gov.tr/bildirim/tr-25-0169https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0169