Product · Go standard library

net/http

27 known vulnerabilities.

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Medium 4.4

CVE-2025-22870 Public exploit

HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net

Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to "*.example.com", a request to "[::1%25.example.com]:80` will incorrectly match and not be prox…

Go standard library golang.org/x/net net/http golang.org/x/net/proxy Debian Ubuntu Azure Linux Alpine Wolfi Go

Mar 12, 2025
Medium 5.3

CVE-2022-41717 Public exploit

Excessive memory growth in net/http and golang.org/x/net/http2

An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contain a cache of HTTP header keys sent by the client. While the total number of entries in this cache is capped, an attacker sending very large…

Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go

Dec 8, 2022