6.5

CVE-2023-29406: Insufficient sanitization of Host header in net/http

Modified
AliasesSUSE-SU-2023:2845-1SUSE-SU-2023:2846-1SUSE-SU-2023:3002-1
Published 11-07-2023Last modified 13-02-2025

Vulnerability summary

CVE-2023-29406 is a medium (CVSS 6.5) Interpretation Conflict vulnerability in go standard library net/http. EPSS estimates a 1.45% chance of exploitation in the next 30 days, higher than 73.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.45%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 18 · Related 9
RHSA-2023:5721RHSA-2023:5738RHSA-2023:5965RHSA-2023:6298RHSA-2023:6346RHSA-2023:6363

Timeline

  1. 11-07-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

1.45%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.45% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat70 products
  • aardvark-dns< 2:1.0.1-38.module+el8.9.0+20325+b2853e6e
  • buildah< 1:1.24.6-7.module+el8.9.0+20325+b2853e6e
  • buildah-debuginfo< 1:1.24.6-7.module+el8.9.0+20325+b2853e6e
  • buildah-debugsource< 1:1.24.6-7.module+el8.9.0+20325+b2853e6e
  • buildah-tests< 1:1.24.6-7.module+el8.9.0+20325+b2853e6e
Chainguard13 products
  • go-1.20< 1.20.6-r0
  • go-1.21All versions (No fix recorded)
  • katib-earlystopping< 0.19.0-r31
  • katib-suggestion-goptuna-compatAll versions (No fix recorded)
  • katib-suggestion-hyperband< 0.19.0-r31
Wolfi13 products
  • go-1.20< 1.20.6-r0
  • go-1.21All versions (No fix recorded)
  • katib-earlystopping< 0.19.0-r31
  • katib-suggestion-goptuna-compatAll versions (No fix recorded)
  • katib-suggestion-hyperband< 0.19.0-r31
Ubuntu10 products
  • golang-1.10All versions (No fix recorded)
  • golang-1.13All versions (No fix recorded)
  • golang-1.14All versions (No fix recorded)
  • golang-1.16All versions (No fix recorded)
  • golang-1.17< 1.17.13-3ubuntu1.2
Opensuse8 products
  • go1.19&distro=openSUSE Leap 15.4< 1.19.11-150000.1.37.1
  • go1.19&distro=openSUSE Leap 15.5< 1.19.11-150000.1.37.1
  • go1.19&distro=openSUSE Tumbleweed< 1.19.11-1.1
  • go1.20-openssl&distro=openSUSE Leap 15.4< 1.20.6.1-150000.1.8.1
  • go1.20-openssl&distro=openSUSE Leap 15.5< 1.20.6.1-150000.1.8.1
Suse8 products
  • go1.19&distro=SUSE Linux Enterprise Module for Development Tools 15 SP4< 1.19.11-150000.1.37.1
  • go1.19&distro=SUSE Linux Enterprise Module for Development Tools 15 SP5< 1.19.11-150000.1.37.1
  • go1.19&distro=SUSE Linux Enterprise Real Time 15 SP3< 1.19.11-150000.1.37.1
  • go1.20-openssl&distro=SUSE Linux Enterprise Module for Development Tools 15 SP4< 1.20.6.1-150000.1.8.1
  • go1.20-openssl&distro=SUSE Linux Enterprise Module for Development Tools 15 SP5< 1.20.6.1-150000.1.8.1
Alpine1 product
  • go≥ 1.20.0, < 1.20.7-r0 | ≥ 1.20.0, < 1.20.6-r0
Debian1 product
  • golang-1.19All versions (No fix recorded)
Go1 product
  • stdlib≥ 1.20.0-0, < 1.20.6
Go standard library1 product
  • net/http< 1.19.11 | ≥ 1.20.0-0, < 1.20.6
Golang1 product
  • go< 1.19.11 | ≥ 1.20.0, < 1.20.6

11 vendors · 127 products

References

36 links
Show all 36 references