Backport of [NET-4897] net/http host header is now verified and request.host that contains socked now error into release/1.16.x #18145
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Jul 14, 2023
… contains socked now error (#18129) ### Description This is related to #18124 where we pinned the go versions in CI to 1.20.5 and 1.19.10. go 1.20.6 and 1.19.11 now validate request host headers for validity, including the hostname cannot be prefixed with slashes. For local communications (npipe://, unix://), the hostname is not used, but we need valid and meaningful hostname. Prior versions go Go would clean the host header, and strip slashes in the process, but go1.20.6 and go1.19.11 no longer do, and reject the host header. Around the community we are seeing that others are intercepting the req.host and if it starts with a slash or ends with .sock, they changing the host to localhost or another dummy value. [client: define a "dummy" hostname to use for local connections by thaJeztah · Pull Request #45942 · moby/moby](moby/moby#45942) ### Testing & Reproduction steps Check CI tests. ### Links * [ ] updated test coverage * [ ] external facing docs updated * [ ] appropriate backport labels added * [ ] not a security concern
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Backport
This PR is auto-generated from #18129 to be assessed for backporting due to the inclusion of the label backport/1.16.
🚨
The person who merged in the original PR is:
@jmurret
This person should manually cherry-pick the original PR into a new backport PR,
and close this one when the manual backport PR is merged in.
The below text is copied from the body of the original PR.
Description
This is related to #18124 where we pinned the go versions in CI to 1.20.5 and 1.19.10.
go 1.20.6 and 1.19.11 now validate request host headers for validity, including the hostname cannot be prefixed with slashes.
For local communications (npipe://, unix://), the hostname is not used, but we need valid and meaningful hostname. Prior versions go Go would clean the host header, and strip slashes in the process, but go1.20.6 and go1.19.11 no longer do, and reject the host header. Around the community we are seeing that others are intercepting the req.host and if it starts with a slash or ends with .sock, they changing the host to localhost or another dummy value.
client: define a "dummy" hostname to use for local connections by thaJeztah · Pull Request #45942 · moby/moby
Testing & Reproduction steps
Check CI tests.
Links
Overview of commits