CVE-2023-29406

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-436

Affected software

Vendor	Product	Versions
Go standard library	net/http	< 1.19.11; >= 1.20.0-0, < 1.20.6

References

https://go.dev/cl/506996Patch
https://go.dev/issue/60374Issue Tracking, Patch
https://groups.google.com/g/golang-announce/c/2q13H6LEEx0Mailing List
https://pkg.go.dev/vuln/GO-2023-1878Vendor Advisory
https://security.gentoo.org/glsa/202311-09
https://security.netapp.com/advisory/ntap-20230814-0002/
https://go.dev/cl/506996Patch
https://go.dev/issue/60374Issue Tracking, Patch
https://groups.google.com/g/golang-announce/c/2q13H6LEEx0Mailing List
https://pkg.go.dev/vuln/GO-2023-1878Vendor Advisory
https://security.gentoo.org/glsa/202311-09
https://security.netapp.com/advisory/ntap-20230814-0002/

Timeline

Published: Jul 11, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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