When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.
Exploitability
AV:NAC:LAT:PPR:LUI:NVulnerable System
VC:LVI:HVA:NSubsequent System
SC:NSI:NSA:N6/CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:NOther