High
Security advisory
net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolled memory consumption in the header canonicalization cache via HTTP/2 requests.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-44716
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:16 UTC · Revision 1
Source evidence
net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolled memory consumption in the header canonicalization cache via HTTP/2 requests.
osv:CVE-2021-44716
Complete source record
{
"id": "1efe5037f19bc55c40e7e9b85869f079792dd365869d2496c4d67b354b54f0fe",
"url": "https://osv.dev/vulnerability/CVE-2021-44716",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-44716",
"summary": "net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolled memory consumption in the header canonicalization cache via HTTP/2 requests.",
"evidence": "osv:CVE-2021-44716",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-44716",
"aliases": [
"BIT-golang-2021-44716",
"CVE-2021-44716",
"GHSA-vc3p-29h2-gpcp",
"GO-2022-0288"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/golang/go",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "f1f3923d2e3a0952c698d2901fc052046fa4af3d"
},
{
"fixed": "de690c2ff8e323c7ce9e274f986dc6f824b35405"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.16.12"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.17.0"
},
{
"fixed": "1.17.5"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"go1.17.4",
"go1.16.11",
"go1.16.10",
"go1.17.3",
"go1.16.9",
"go1.17.2",
"go1.16.8",
"go1.17.1",
"go1.17",
"go1.17rc2",
"go1.16.7",
"go1.16.6",
"go1.17rc1",
"go1.16.5",
"go1.17beta1",
"go1.16.4",
"go1.16.3",
"go1.16.2",
"go1.16",
"go1.16rc1",
"go1.16beta1",
"go1.15beta1",
"go1.14beta1",
"go1.13beta1",
"go1.12beta2",
"go1.12beta1",
"go1.11beta3",
"go1.11beta2",
"go1.11beta1",
"go1.10rc2",
"go1.10rc1",
"go1.10beta2",
"go1.10beta1",
"go1.9beta2",
"go1.9beta1",
"go1.8beta2",
"go1.8beta1",
"go1.7rc4",
"go1.7rc3",
"go1.7rc2",
"go1.7rc1",
"go1.7beta2",
"go1.7beta1",
"go1.6beta2",
"go1.6beta1",
"go1.5beta3",
"go1.5beta2",
"go1.5beta1",
"go1.4beta1",
"go1.3beta2",
"go1.3beta1",
"weekly.2012-03-27",
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"weekly.2011-05-22",
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"weekly.2011-03-28",
"weekly.2011-03-15",
"weekly.2011-03-07.1",
"release.r56",
"weekly.2011-03-07",
"weekly.2011-02-24",
"weekly.2011-02-15",
"weekly.2011-02-01.1",
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"weekly.2010-01-27",
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"weekly.2009-12-22",
"weekly.2009-12-09",
"weekly.2009-12-07",
"weekly.2009-11-17",
"weekly.2009-11-12",
"weekly.2009-11-10.1",
"weekly.2009-11-10",
"weekly.2009-11-06"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44716.json"
}
}
],
"modified": "2026-10-24T10:30:51.109177574Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf",
"https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html",
"https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html",
"https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html",
"https://security.gentoo.org/glsa/202208-02",
"https://security.netapp.com/advisory/ntap-20220121-0002/",
"https://groups.google.com/g/golang-announce/c/hcmEScgc00k"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-44716",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 437411,
"published_at": "2022-01-01T05:15:08.307+00:00"
}