Vigie VulnDBEuropean-hosted Vulnerability DB

CVE-2022-41723

Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net

At a glance

Severity
HIGH 7.5
EPSS
EPSS 4.56 % · percentile 92 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
Go
NVD status
Modified

Description

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests.

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Advisories

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Go standard library · net/httpaffected 0 < 1.19.6 ; affected 1.20.0-0 < 1.20.1
golang.org/x/net · golang.org/x/net/http2affected 0 < 0.7.0
golang.org/x/net · golang.org/x/net/http2/hpackaffected 0 < 0.7.0

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD