VDB
RHSA-2026:79166
RHSA-2026:79166
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in the HTTP/2 protocol implementation within the Go standard library (golang.org/x/net and net/http/internal/http2). A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGS_MAX_FRAME_SIZE parameter set to zero. This malicious frame causes the transport layer to enter an infinite loop of writing CONTINUATION frames, leading to resource exhaustion and a Denial of Service (DoS) condition.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | openshift-ansible-test-0:4.19.0-202610062306.p2.g75653ac.assembly.stream.el8.noarch as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g75653ac.assembly.stream.el8.noarch |
| Red Hat | openshift-ansible-0:4.19.0-202610062306.p2.g75653ac.assembly.stream.el9.src as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g75653ac.assembly.stream.el9.src |
| Red Hat | openshift-kubelet-0:4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.ppc64le |
| Red Hat | openshift-kubelet-0:4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.x86 |
| Red Hat | openshift-kube-scheduler-0:4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.x86 |
| Red Hat | openshift-kube-scheduler-0:4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.aarch64 |
| Red Hat | openshift-kube-scheduler-0:4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.s390x as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.s390x |
| Red Hat | openshift4-aws-iso-0:4.19.0-202610062306.p2.gd2acdd5.assembly.stream.el8.noarch as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.gd2acdd5.assembly.stream.el8.noarch |
| Red Hat | openshift-clients-0:4.19.0-202610062306.p2.g2709219.assembly.stream.el8.src as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g2709219.assembly.stream.el8.src |
| Red Hat | openshift-kube-controller-manager-0:4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.s390x as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.s390x |
| Red Hat | ose-aws-ecr-image-credential-provider-0:4.19.0-202610062306.p2.g425c1c5.assembly.stream.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g425c1c5.assembly.stream.el9.ppc64le |
| Red Hat | ose-aws-ecr-image-credential-provider-0:4.19.0-202610062306.p2.g425c1c5.assembly.stream.el9.s390x as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g425c1c5.assembly.stream.el9.s390x |
| Red Hat | openshift-clients-0:4.19.0-202610062306.p2.g2709219.assembly.stream.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g2709219.assembly.stream.el8.ppc64le |
| Red Hat | openshift-kubelet-0:4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g63adf01.assembly.stream.el9.aarch64 |
| Red Hat | openshift-clients-0:4.19.0-202610062306.p2.g2709219.assembly.stream.el9.s390x as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g2709219.assembly.stream.el9.s390x |
| Red Hat | ose-azure-acr-image-credential-provider-0:4.19.0-202610062306.p2.gb249afb.assembly.stream.el9.src as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.gb249afb.assembly.stream.el9.src |
| Red Hat | openshift4-aws-iso-0:4.19.0-202610062306.p2.gd2acdd5.assembly.stream.el8.src as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.gd2acdd5.assembly.stream.el8.src |
| Red Hat | openshift-clients-0:4.19.0-202610062306.p2.g2709219.assembly.stream.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g2709219.assembly.stream.el9.ppc64le |
| Red Hat | ose-aws-ecr-image-credential-provider-0:4.19.0-202610062306.p2.g425c1c5.assembly.stream.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.g425c1c5.assembly.stream.el9.aarch64 |
| Red Hat | ose-azure-acr-image-credential-provider-0:4.19.0-202610062306.p2.gb249afb.assembly.stream.el9.s390x as a component of Red Hat OpenShift Container Platform 4.19 | 4.19.0-202610062306.p2.gb249afb.assembly.stream.el9.s390x |
…and 35 more
Timeline
- Oct 15, 2026 CVE Published
- Oct 21, 2026 CVE Updated
- Oct 21, 2026 Distribution Patch
- Oct 21, 2026 Distribution Patch
- Oct 21, 2026 Security Advisory
- Oct 21, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:79166 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2467815 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_79166.json advisory
- https://access.redhat.com/security/cve/CVE-2026-33814 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-33814 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-33814 advisory
- https://go.dev/cl/761581 advisory
- https://go.dev/cl/761640 advisory
- https://go.dev/issue/78476 advisory
- https://groups.google.com/g/golang-announce/c/qcCIEXso47M advisory
- https://pkg.go.dev/vuln/GO-2026-4918 advisory