CVE-2022-41723: Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
Vulnerability summary
CVE-2022-41723 is a high (CVSS 7.5) vulnerability in go standard library net/http. EPSS estimates a 4.56% chance of exploitation in the next 30 days, higher than 91.6% of scored vulnerabilities.
Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 45 · Related 71Timeline
- 28-02-2023PublishedVulnerability first disclosed.
- 05-05-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
9 scores · 9 sources · 1 version- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · GoEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
4.56%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.56% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard54 products
- cadvisorAll versions (No fix recorded)
- dynamic-localpv-provisioner< 3.4.1-r3
- dynamic-localpv-provisioner-fips< 3.5.0-r0
- gke-gcloud-auth-plugin< 0.0.2-r6
- go-1.20< 1.20.1-r1
Wolfi36 products
- cadvisorAll versions (No fix recorded)
- dynamic-localpv-provisioner< 3.4.1-r3
- gke-gcloud-auth-plugin< 0.0.2-r6
- go-1.20< 1.20.1-r1
- grpcurl< 1.8.7-r7
Ubuntu15 products
- adsys< 0.9.2~20.04.2ubuntu0.1+esm1
- 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)
Redhat14 products
- podman< 3:4.4.1-5.1.rhaos4.13.el8 | < 3:4.4.1-6.1.1.rhaos4.13.el9
- podman-catatonit< 3:4.4.1-5.1.rhaos4.13.el8
- podman-catatonit-debuginfo< 3:4.4.1-5.1.rhaos4.13.el8
- podman-debuginfo< 3:4.4.1-5.1.rhaos4.13.el8 | < 3:4.4.1-6.1.1.rhaos4.13.el9
- podman-debugsource< 3:4.4.1-5.1.rhaos4.13.el8 | < 3:4.4.1-6.1.1.rhaos4.13.el9
Opensuse3 products
- docker-compose&distro=openSUSE Tumbleweed< 2.17.0-1.1
- golang-github-prometheus-prometheus&distro=openSUSE Tumbleweed< 2.46.0-2.1
- grafana&distro=openSUSE Tumbleweed< 9.3.6-2.1
Alpine2 products
- go< 1.19.6-r0 | < 1.20.1-r0
- podman< 4.4.3-r0
Debian2 products
- golang-1.19< 1.19.6-2
- golang-golang-x-net< 1:0.7.0+dfsg-1
Golang.org/x/net2 products
- golang.org/x/net/http2< 0.7.0
- golang.org/x/net/http2/hpack< 0.7.0
Go1 product
- stdlib≥ 1.20.0-0, < 1.20.1
Go standard library1 product
- net/http< 1.19.6 | ≥ 1.20.0-0, < 1.20.1
Golang.org/x1 product
- net< 0.7.0
12 vendors · 134 products
References
52 linksShow all 52 references
- pkg.go.devWEB