VDB
RHSA-2026:74427
RHSA-2026:74427
PUBLISHED
CVSS 7.5 HIGH
Record from redhat · Published October 6, 2026
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 | kernel-rt-core-0:5.14.0-687.53.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-0:5.14.0-687.53.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | perf-debuginfo-0:5.14.0-687.53.1.el9_8.ppc64le as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | ose-aws-ecr-image-credential-provider-0:4.22.0-202609252029.p2.gb4bad3f.assembly.stream.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:4.22.0-202609252029.p2.gb4bad3f.assembly.stream.el8 |
| Red Hat | kernel-modules-0:5.14.0-687.53.1.el9_8.s390x as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-debuginfo-common-ppc64le-0:5.14.0-687.53.1.el9_8.ppc64le as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | ose-azure-acr-image-credential-provider-0:4.22.0-202609252029.p2.ga17a3e3.assembly.stream.el8.s390x as a component of Red Hat OpenShift Container Platform 4.22 | 0:4.22.0-202609252029.p2.ga17a3e3.assembly.stream.el8 |
| Red Hat | kernel-64k-debug-core-0:5.14.0-687.53.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-rt-modules-partner-0:5.14.0-687.53.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-debug-devel-matched-0:5.14.0-687.53.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-tools-0:5.14.0-687.53.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-rt-debuginfo-0:5.14.0-687.53.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-debug-modules-core-0:5.14.0-687.53.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-modules-partner-0:5.14.0-687.53.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-core-0:5.14.0-687.53.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-debug-modules-0:5.14.0-687.53.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | kernel-rt-debuginfo-0:5.14.0-687.53.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | perf-0:5.14.0-687.53.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | python3-perf-debuginfo-0:5.14.0-687.53.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.53.1.el9_8 |
| Red Hat | openshift-ansible-test-0:4.22.0-202609252029.p2.g440ea65.assembly.stream.el8.noarch as a component of Red Hat OpenShift Container Platform 4.22 | 0:4.22.0-202609252029.p2.g440ea65.assembly.stream.el8 |
…and 261 more
Timeline
- Oct 6, 2026 CVE Published
- Oct 21, 2026 CVE Updated
- Oct 21, 2026 Distribution Patch (2 in total, the first dated here)
- Oct 21, 2026 Security Advisory (2 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln RHSA-2026:74427
vulnetix vdb fixes RHSA-2026:74427Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/RHSA-2026%3A74427/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://access.redhat.com/errata/RHSA-2026:74427 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_74427.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