Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
Priority MEDIUM 46CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 29 fixed, 32 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04561 91st percentileScored 2026-11-07
Fix Partial net/http (Go standard library): 1.19.6, 1.20.1golang.org/x/net/http2 (golang.org/x/net): 0.7.0+2 more productsRed Hat: 57 advisoriesRed Hat: 29 fixed, 32 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Go standard library | net/http | before 1.19.6; 1.20.0-0 to before 1.20.1 | 1.19.6, 1.20.1 | Patch available | CNA |
| Go standard library | golang.org/x/net/http2 | before 0.7.0 | 0.7.0 | Patch available | CNA |
| Go standard library | golang.org/x/net/http2/hpack | before 0.7.0 | 0.7.0 | Patch available | CNA |
| — | golang.org/x/net (Go) | before 0.7.0 | 0.7.0 | Patch available | GHSA-vvpx-j8f3-3w6h |
- net/http VendorGo standard library Affected before 1.19.6; 1.20.0-0 to before 1.20.1 Fixed in 1.19.6, 1.20.1 Patch available CNA
- golang.org/x/net/http2 VendorGo standard library Affected before 0.7.0 Fixed in 0.7.0 Patch available CNA
- golang.org/x/net/http2/hpack VendorGo standard library Affected before 0.7.0 Fixed in 0.7.0 Patch available CNA
- golang.org/x/net (Go) Vendor— Affected before 0.7.0 Fixed in 0.7.0 Patch available GHSA-vvpx-j8f3-3w6h
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* | before 1.19.6 | Vulnerable | Go standard library |
| cpe:2.3:a:golang:go:1.20.0:-:*:*:*:*:*:* | 1.20.0 | Vulnerable | Go standard library |
| cpe:2.3:a:golang:hpack:*:*:*:*:*:go:*:* | before 0.7.0 | Vulnerable | Go standard library |
| cpe:2.3:a:golang:http2:*:*:*:*:*:go:*:* | before 0.7.0 | Vulnerable | Go standard library |
- cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* Versions before 1.19.6 Vulnerable ·Go standard library
- cpe:2.3:a:golang:go:1.20.0:-:*:*:*:*:*:* Versions 1.20.0 Vulnerable ·Go standard library
- cpe:2.3:a:golang:hpack:*:*:*:*:*:go:*:* Versions before 0.7.0 Vulnerable ·Go standard library
- cpe:2.3:a:golang:http2:*:*:*:*:*:go:*:* Versions before 0.7.0 Vulnerable ·Go standard library
Remediation
- Fix · CNA net/http (Go standard library) Fixed in 1.19.6, 1.20.1
- Fix · CNA golang.org/x/net/http2 (golang.org/x/net) Fixed in 0.7.0
- Fix · CNA golang.org/x/net/http2/hpack (golang.org/x/net) Fixed in 0.7.0
- Fix · GHSA-vvpx-j8f3-3w6h golang.org/x/net (Go) Fixed in 0.7.0 Advisory →
Red Hat 57 advisories
- RHSA-2025:1116 Released 2025-02-13 · Red Hat rating ImportantOpenShift Container Platform 4.13.55 bug fix and security update
- Red Hat OpenShift Container Platform 4.13 openshift4/ose-baremetal-machine-controllers, openshift4/ose-ibmcloud-machine-controllers-rhel8, openshift4/ose-nutanix-cloud-controller-manager-rhel8 +4
- RHSA-2024:4677 Released 2024-07-25 · Red Hat rating ImportantOpenShift Container Platform 4.12.61 bug fix and security update
- Red Hat OpenShift Container Platform 4.12 openshift4/cloud-network-config-controller-rhel8, openshift4/ose-aws-cloud-controller-manager-rhel8, openshift4/ose-operator-lifecycle-manager +1
- RHSA-2024:3494 Released 2024-06-05 · Red Hat rating ModerateOpenShift Container Platform 4.13.43 security update
- Red Hat OpenShift Container Platform 4.13 openshift4/cloud-network-config-controller-rhel8
Show 54 more Red Hat advisories
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- RHSA-2024:0485 Released 2024-01-31 · Red Hat rating ImportantOpenShift Container Platform 4.12.48 bug fix and security update
- Red Hat OpenShift Container Platform 4.12 openshift4/cloud-network-config-controller-rhel8, openshift4/egress-router-cni-rhel8, openshift4/kubevirt-csi-driver-rhel8 +47
- RHSA-2024:0198 Released 2024-01-17 · Red Hat rating ImportantOpenShift Container Platform 4.12.47 security update
- Red Hat OpenShift Container Platform 4.12 openshift4/ose-aws-pod-identity-webhook-rhel8, openshift4/ose-k8s-prometheus-adapter, openshift4/ose-machine-api-provider-aws-rhel8 +1
- RHSA-2023:7823 Released 2024-01-04 · Red Hat rating ImportantOpenShift Container Platform 4.12.46 bug fix and security update
- Red Hat OpenShift Container Platform 4.12 openshift4/ose-azure-cloud-node-manager-rhel8, openshift4/ose-cluster-autoscaler-operator, openshift4/ose-cluster-cloud-controller-manager-operator-rhel8 +9
- RHSA-2023:7058 Released 2023-11-14 · Red Hat rating Moderaterhc security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) rhc-1:0.2.4-3.el8_9
- RHSA-2023:6939 Released 2023-11-14 · Red Hat rating Moderatecontainer-tools:rhel8 security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 8) aardvark-dns-2:1.7.0-1.module+el8.9.0+19244+655f84ee.aarch64::container-tools:rhel8, aardvark-dns-2:1.7.0-1.module+el8.9.0+19244+655f84ee.ppc64le::container-tools:rhel8, aardvark-dns-2:1.7.0-1.module+el8.9.0+19244+655f84ee.s390x::container-tools:rhel8 +47
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- Red Hat Enterprise Linux AppStream (v. 8) aardvark-dns-2:1.0.1-38.module+el8.9.0+19098+6e7a5e3f.aarch64::container-tools:4.0, aardvark-dns-2:1.0.1-38.module+el8.9.0+19098+6e7a5e3f.ppc64le::container-tools:4.0, aardvark-dns-2:1.0.1-38.module+el8.9.0+19098+6e7a5e3f.s390x::container-tools:4.0 +47
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- RHSA-2023:4456 Released 2023-08-08 · Red Hat rating ModerateOpenShift Container Platform 4.13.8 bug fix and security update
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- RHSA-2023:4003 Released 2023-07-10 · Red Hat rating ModerateRed Hat Service Interconnect 1.4 Release security update
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- RHSA-2023:1325 Released 2023-05-18 · Red Hat rating ImportantOpenShift Container Platform 4.13.0 security update
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- RHSA-2023:3083 Released 2023-05-16 · Red Hat rating Moderatego-toolset:rhel8 security and bug fix update
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Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Migration Toolkit for Applications 6 | Affected | No fix yet |
| Node HealthCheck Operator | Affected | No fix yet |
| Node Maintenance Operator | Affected | No fix yet |
| OpenShift Developer Tools and Services | Affected | No fix yet |
| OpenShift Pipelines | Affected | No fix yet |
| OpenShift Secondary Scheduler Operator | Affected | No fix planned: Will not fix |
| OpenShift Serverless | Affected | No fix yet |
| OpenShift Service Mesh 2 | Affected | No fix planned: Will not fix |
| OpenShift Service Mesh 2.1 | Affected | No fix planned: Will not fix |
| Red Hat 3scale API Management Platform 2 | Affected | No fix yet |
| Red Hat AMQ Broker 7 | Affected | No fix yet |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet |
| Red Hat Advanced Cluster Security 3 | Affected | No fix yet |
| Red Hat Ansible Automation Platform 2 | Affected | No fix yet |
| Red Hat Application Interconnect 1.0 | Affected | No fix yet |
| Red Hat Ceph Storage 5 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 3.11 | Affected | No fix planned: Out of support scope |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Data Science (RHODS) | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet |
| Red Hat OpenShift GitOps | Affected | No fix yet |
| Red Hat OpenShift Virtualization 4 | Affected | No fix yet |
| Red Hat OpenShift distributed tracing 2 | Affected | No fix yet |
| Red Hat OpenShift on AWS | Affected | No fix yet |
| Red Hat Openshift Container Storage 4 | Affected | No fix planned: Out of support scope |
| Red Hat Openshift Sandboxed Containers | Affected | No fix planned: Out of support scope |
| Red Hat Software Collections | Affected | No fix planned: Will not fix |
| Red Hat Storage 3 | Affected | No fix planned: Out of support scope |
| Red Hat Web Terminal | Affected | No fix yet |
| Self Node Remediation Operator | Affected | No fix yet |
| 8Base-MTV-2.4 | Fixed | — |
| 8Base-MTV-2.5 | Fixed | — |
| 8Base-OADP-1.1 | Fixed | RHSA-2023:3918, RHSA-2023:5314 |
| 8Base-RHMTC-1.7 | Fixed | RHSA-2023:4293 |
| CNV 4.12 for RHEL 8 | Fixed | RHSA-2023:4421, RHSA-2023:6248 |
| CNV 4.13 for RHEL 9 | Fixed | RHSA-2023:4664, RHSA-2023:5233, RHSA-2023:6235 |
| Cryostat 2 on RHEL 8 | Fixed | RHSA-2023:3167 |
| MTA 6.2 for RHEL 8 | Fixed | RHSA-2023:4627 |
| Middleware Containers for OpenShift | Fixed | RHSA-2024:2944 |
| OpenShift Developer Tools and Services for OCP 4.12 | Fixed | — |
| OpenShift Update Service 5.0 for RHEL 8 | Fixed | — |
| Quay v3 | Fixed | — |
| RHACS 4.1 for RHEL 8 | Fixed | RHSA-2023:3943 |
| RHODF 4.13 for RHEL 9 | Fixed | RHSA-2023:3742 |
| RHODF 4.14 for RHEL 9 | Fixed | RHSA-2023:6832 |
| RHOL 5.7 for RHEL 8 | Fixed | RHSA-2023:3495 |
| RHOSSM 2.2 for RHEL 8 | Fixed | RHSA-2023:4112 |
| RHOSSM 2.3 for RHEL 8 | Fixed | RHSA-2023:4113 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2023:3083, RHSA-2023:6938, RHSA-2023:6939, RHSA-2023:7058 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:6346, RHSA-2023:6363, RHSA-2023:6402, RHSA-2023:6473, RHSA-2023:6474 |
| Red Hat OpenShift Container Platform 4.12 | Fixed | RHSA-2023:7823, RHSA-2024:0198, RHSA-2024:0485, RHSA-2024:4677 |
| Red Hat OpenShift Container Platform 4.13 | Fixed | RHSA-2023:1325, RHSA-2023:1326, RHSA-2023:3304, RHSA-2023:3305, RHSA-2023:3367, RHSA-2023:3537, RHSA-2023:3614, RHSA-2023:4090, RHSA-2023:4091, RHSA-2023:4225, RHSA-2023:4226, RHSA-2023:4456, RHSA-2023:4603, RHSA-2023:4731, RHSA-2023:5672, RHSA-2024:0948, RHSA-2024:3494, RHSA-2025:1116 |
| Red Hat OpenShift Container Platform 4.14 | Fixed | RHSA-2023:5006, RHSA-2023:5007 |
| Red Hat OpenShift Serverless 1.0 | Fixed | RHSA-2023:3450 |
| Red Hat OpenShift Serverless 1.29 | Fixed | RHSA-2023:3455 |
| Red Hat OpenStack Platform 16.1 | Fixed | RHSA-2023:3447 |
| Red Hat OpenStack Platform 16.2 | Fixed | RHSA-2023:3445 |
| Red Hat Service Interconnect | Fixed | RHSA-2023:4003 |
| Red Hat Service Interconnect 1 | Fixed | RHSA-2023:4003 |
Not affected: 34 products
- 8Base-MTV-2.4
- 8Base-MTV-2.5
- 8Base-OADP-1.1
- 8Base-RHMTC-1.7
- CNV 4.12 for RHEL 8
- CNV 4.13 for RHEL 9
- Custom Metric Autoscaler operator for Red Hat Openshift
- Ironic content for Red Hat OpenShift Container Platform 4.13
- Logging Subsystem for Red Hat OpenShift
- MTA 6.2 for RHEL 8
- Middleware Containers for OpenShift
- Network Observability Operator
- OpenShift Developer Tools and Services
- OpenShift Developer Tools and Services for OCP 4.12
- RHACS 4.1 for RHEL 8
- RHODF 4.13 for RHEL 9
- RHODF 4.14 for RHEL 9
- RHOL 5.7 for RHEL 8
- RHOSSM 2.2 for RHEL 8
- RHOSSM 2.3 for RHEL 8
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux AppStream (v. 8)
- Red Hat Enterprise Linux AppStream (v. 9)
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 4.12
- Red Hat OpenShift Container Platform 4.13
- Red Hat OpenShift Container Platform 4.14
- Red Hat OpenShift Container Platform Assisted Installer 1
- Red Hat OpenStack Platform 16.2
- Red Hat Openshift Data Foundation 4
- Red Hat Satellite 6
- Red Hat Service Interconnect
- Red Hat Service Interconnect 1
Timeline
- 2026-10-02 Threatist record created from CVE-2022-41723
- 2026-10-03 Alias added: GHSA-vvpx-j8f3-3w6h
- 2026-10-30 Fix available: OpenShift Update Service 5.0 for RHEL 8 · Red Hat
References
Advisory 7
- https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E
- https://pkg.go.dev/vuln/GO-2023-1571
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4MA5XS5DAOJ5PKKNG5TUXKPQOFHT5VBC/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/RLBQ3A7ROLEQXQLXFDLNJ7MYPKG5GULE/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/RGW7GE2Z32ZT47UFAQFDRQE33B7Q7LMT/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/XX3IMUTZKRQ73PBZM4E2JP4BKYH4C6XE/
- https://nvd.nist.gov/vuln/detail/CVE-2022-41723
Other 15
- https://go.dev/issue/57855
- https://www.couchbase.com/alerts/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/
- https://security.gentoo.org/glsa/202311-09
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4MA5XS5DAOJ5PKKNG5TUXKPQOFHT5VBC
- https://lists.fedoraproject.org/archives/list/[email protected]/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU
- https://lists.fedoraproject.org/archives/list/[email protected]/message/RGW7GE2Z32ZT47UFAQFDRQE33B7Q7LMT
- https://lists.fedoraproject.org/archives/list/[email protected]/message/RLBQ3A7ROLEQXQLXFDLNJ7MYPKG5GULE
- https://lists.fedoraproject.org/archives/list/[email protected]/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI
- https://lists.fedoraproject.org/archives/list/[email protected]/message/XX3IMUTZKRQ73PBZM4E2JP4BKYH4C6XE
- https://vuln.go.dev/ID/GO-2023-1571.json
- https://www.couchbase.com/alerts
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- TI-2018-05208 The "go get" implementation in Go 1.9.4, when the -insecure command-line option is used… CVSS 3.1HIGH 8.8
- TI-2018-12083 Improper input validation in [UNKNOWN] golang CVSS 3.1HIGH 8.1
- TI-2024-16306 Mishandling of corrupt central directory record in archive/zip CVSS 3.1MEDIUM 5.5
- TI-2021-15910 Go before 1.16.9 and 1.17.x before 1.17.2 has a Buffer Overflow via large arguments in a… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-41723 · CVE Program
- CVE-2022-41723 · NVD
- FIRST EPSS
- GHSA-vvpx-j8f3-3w6h · GitHub Advisory Database · CC BY 4.0
- CVE-2022-41723 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences