Varnish Cache before 8.0.1 and Varnish Enterprise before 6.0.16r12, in certain unchecked req.url scenarios, mishandle URLs with a path of / for HTTP/1.1, potentially leading to cache poisoning or authentication bypass.
Exploitability
AV:NAC:HPR:NUI:NScope
S:CImpact
C:LI:LA:N5.4/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:NOther