VDB
RHSA-2026:74380
RHSA-2026:74380
PUBLISHED
CVSS 7.099999904632568 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
7.099999904632568
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | registry.redhat.io/openshift4/ose-machine-api-rhel9-operator@sha256:185dc491e3e744391c64354fa611373385d7a840ae08957246d219420409f209_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-multus-admission-controller-rhel9@sha256:87d01ced6bfc0216107ce1b7883a59b468b9c83a55d1ab390cf58bf576e8b999_ppc64le as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-kube-rbac-proxy-rhel9@sha256:be15edd077c0bd05617c8f7c1d62e5e04d9c85909bebeb726c66f24974c145b5_amd64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-hypershift-rhel9@sha256:0b9eb66b6203bf6b55a59d0eb821861bcb06dd066273780268a19b82805d9051_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-csi-external-resizer-rhel9@sha256:22ee0631a12a116de8743e5f36cbb4ae6d24a827a9081a4b7acbbec6bb07222c_s390x as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-azure-cluster-api-controllers-rhel9@sha256:9bc329bde7009b44ef6fe310bdfa1ea71f199e074b34f8d15d45c7f472622118_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-multus-whereabouts-ipam-cni-rhel9@sha256:57aa5706dc52ce465d1e8b5ab41325d05e6a20086d5f95736ded2fc189705cc6_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-service-ca-rhel9-operator@sha256:36d7ec13bccbd548b8ab562ebe1c226ef5ee72f52cedddba77049f99be556d03_s390x as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-must-gather-rhel9@sha256:4dfeea6073e1ddd80000009af8a32b3629b34df504ae7e1ecd6b66ccd759136e_amd64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-haproxy-router-rhel9@sha256:893034649647022be2d6897b79c0fa45d869d68ea1dce88127a86c90bc445348_s390x as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-cluster-kube-cluster-api-rhel9-operator@sha256:3080bd1efaaf0de232468bb926b79c33c0b5ff8decbe7f766e1216ae78aac288_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-agent-installer-utils-rhel9@sha256:18a7cbbe9c438b87f3f2e3f3d36e4840dbe21ae7467ecbee10278184831817b6_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-cluster-dns-rhel9-operator@sha256:419232e1bb4f3939a7c67e0a0bbdf8550620bfca69888df557e3b24eeffd0a12_amd64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-baremetal-runtimecfg-rhel9@sha256:008ecae13665e3a6b8c495d3b1ffd9396ac88a3f409ce6037a4c2ac8c56baf5c_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-baremetal-cluster-api-controllers-rhel9@sha256:88ae12e4f78968bdb29a91dcad3b853f57a1b46a7ff887d5e0d426ac57d2574f_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-etcd-rhel9@sha256:c495e306251f0e0f6ec289c81a448e19af1ee9c6e2ebc0f76e112c0bf2e9ba60_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-agent-installer-api-server-rhel9@sha256:3870e2013884383380c66779b555e3bc6799d9f40ab3142f26408f75473e031b_s390x as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-machine-api-provider-gcp-rhel9@sha256:a245dd0f8db20cebe70b7369c63aa4c93e9ef96921ed6cb1632536f2bfa47ca5_ppc64le as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/ose-network-metrics-daemon-rhel9@sha256:c5397c20fafe2b27f5eabcdb511b63a19dbf5274dd212b73a16bd4cab7ffd3c1_amd64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
| Red Hat | registry.redhat.io/openshift4/azure-service-rhel9-operator@sha256:b18e3622eec023eccf5b84b45ee9ef0f6edb3c8a277ddf0baabab82b7afe86d3_arm64 as a component of Red Hat OpenShift Container Platform 4.20 | * |
…and 636 more
Timeline
- Oct 6, 2026 CVE Published
- Oct 12, 2026 CVE Updated
- Oct 12, 2026 Distribution Patch
- Oct 12, 2026 Distribution Patch
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:74380 advisory
- https://access.redhat.com/security/cve/CVE-2026-33814 advisory
- https://access.redhat.com/security/cve/CVE-2026-39821 advisory
- https://access.redhat.com/security/cve/CVE-2026-39829 advisory
- https://access.redhat.com/security/cve/CVE-2026-49329 advisory
- https://access.redhat.com/security/cve/CVE-2026-67213 advisory
- https://access.redhat.com/security/cve/CVE-2026-83589 advisory
- https://access.redhat.com/security/cve/CVE-2026-96577 advisory
- https://access.redhat.com/security/updates/classification/ advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_74380.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=2480756 issue
- https://www.cve.org/CVERecord?id=CVE-2026-39821 advisory
…and 28 more