Insufficient sanitization of Host header in net/http
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.5%
exploitation probability
1.5%top 28% of all CVEs
observed exploitation
nono source reports it
The HTTP/1 client does not fully validate the contents of the Host header. A maliciously crafted Host header can inject additional headers or entire requests. With fix, the HTTP/1 client now refuses to send requests containing an invalid Request.Host or Request.URL.Host value.
Affected products
Go standard library · net/http