CVE-2022-1705

Improper sanitization of Transfer-Encoding headers in net/http

State: Published
Severity: 6.5 Medium
Published: Aug 9, 2022
Updated: Mar 6, 2026
Reserved: May 13, 2022

Description

Acceptance of some invalid Transfer-Encoding headers in the HTTP/1 client in net/http before Go 1.17.12 and Go 1.18.4 allows HTTP request smuggling if combined with an intermediate server that also improperly fails to reject the header as invalid.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
net/httpGo standard library	before 1.17.12Affected 1.18.0-0 to before 1.18.4Affected

References

https://go.dev/cl/409874
https://go.googlesource.com/go/+/e5017a93fcde94f09836200bca55324af037ee5f
https://go.dev/issue/53188
https://go.dev/cl/410714
https://groups.google.com/g/golang-announce/c/nqrv9fbR0zE
https://pkg.go.dev/vuln/GO-2022-0525

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