VDB
RHSA-2026:70618
RHSA-2026:70618
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 | registry.redhat.io/openshift4/ose-egress-router-rhel9@sha256:47be25d84c6e27c81986e6de1353bd539d31fa3fb286692bcbb9352a667c21ed_s390x as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-local-storage-diskmaker-rhel9@sha256:090fc68034efd449ec193a305d11dd4a23093ed0935f5851614f24b485140e3f_arm64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-clusterresourceoverride-rhel9@sha256:d4ba915256008a446f105badc4c7e016ebe48fbe6a3861227d7986f702f9411f_arm64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-clusterresourceoverride-rhel9@sha256:2905daec2e1a148805a5ef4d3db42e77df3edb752dc79683fd20e9bc00210f07_amd64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ingress-node-firewall-rhel9-operator@sha256:302552f5442804c653e89c5c57e8f17422c89fc706ed5cdcd4e2508eb3918847_arm64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-egress-router-rhel9@sha256:f27a23795d1b809556006acb055ed08ff66d0d2bf080f47e4b4f15e75104fb07_arm64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-cluster-nfd-rhel9-operator@sha256:714cc0bc3ff5b40942af9af556e77e778938e4344498aeec611bfa0c75c78e40_s390x as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-clusterresourceoverride-rhel9-operator@sha256:01fd43f7b251f02ab729c690f378a1761d88d755752d5dfba9607a0713d70cb2_s390x as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-local-storage-mustgather-rhel9@sha256:aa61ad657f47d0364006d96f747e09dbe244987f29f0de1d6d739bfc97c329e1_ppc64le as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-ansible-rhel9-operator@sha256:9a7ac0a91d64ec1730f545da1c3e7fb7fd6357d8af6f87ab9d22a4a1248e0373_amd64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/kubernetes-nmstate-rhel9-operator@sha256:028046694393461c56ea4f4dcbe78a8224817f15f0269efedfb74dcdc414bac7_ppc64le as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ptp-must-gather-rhel9@sha256:5b40cbfeff56a8e72500ecf05ef4e01285ec33be21baa8f3bf2da3a723eddd21_arm64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-egress-dns-proxy-rhel9@sha256:7faca4a44bb747ef0f62ea6a421bbe6bd7cbc62f9cae59f496d60f4503483e1a_arm64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-egress-http-proxy-rhel9@sha256:ddf04b50f06aa6c3f297584a93e05cce63143cd0ff4e85cab62504e3a76ec9d4_s390x as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-helm-rhel9-operator@sha256:24b4e0d2b0c4696a22fc08974dbf353e11b5f56b2381e6d29e2aac6854236617_amd64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-ptp-rhel9-operator@sha256:6705ecf8eede26b4a657e51321a3783bcfefde6dc978e754091642180acd8086_ppc64le as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-helm-rhel9-operator@sha256:8b1716dc3c3527dec8359d30c3c9bfcc734511faf9d9a189a35a9f7049b5f1a4_arm64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-sriov-infiniband-cni-rhel9@sha256:bce6df52028a2a9f8d60697bda6316707123a312b085d451cd16b516f2fc6ff0_amd64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-csi-external-provisioner-rhel9@sha256:425210a97c99dd121aea477ef6b42d26a5ff5680878c51267a133d0f286c2956_arm64 as a component of Red Hat OpenShift Container Platform 4.18 | * |
| Red Hat | registry.redhat.io/openshift4/ose-gcp-filestore-csi-driver-rhel9-operator@sha256:4d7702fe21493bf5a68bd55d2e4689225e7c3bb79ca5d620334ee695a28905c8_ppc64le as a component of Red Hat OpenShift Container Platform 4.18 | * |
…and 172 more
Timeline
- Oct 1, 2026 CVE Published
- Oct 4, 2026 CVE Updated
- Oct 4, 2026 Distribution Patch
- Oct 4, 2026 Distribution Patch
- Oct 4, 2026 Security Advisory
- Oct 4, 2026 Security Advisory
- Oct 4, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:70618 advisory
- https://access.redhat.com/security/cve/CVE-2026-33814 advisory
- https://access.redhat.com/security/cve/CVE-2026-73643 advisory
- https://access.redhat.com/security/updates/classification/ advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_70618.json advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2467815 issue
- 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
- https://bugzilla.redhat.com/show_bug.cgi?id=2515531 issue
- https://www.cve.org/CVERecord?id=CVE-2026-73643 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-73643 advisory
- https://github.com/nodeca/js-yaml/commit/3e5240f9cbe645ce5afb58524954a13c8539c853 advisory
- https://github.com/nodeca/js-yaml/security/advisories/GHSA-pm4m-ph32-ghv5 advisory