VDB
RHSA-2026:76814
RHSA-2026:76814
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/lifecycle-agent-operator-bundle@sha256:c611539b33821c5692de1b3b6f04149f49ebd61adc31209a1392d5cc3b9fa30d_amd64 as a component of Red Hat OpenShift Container Platform 4.19 | * |
| Red Hat | registry.redhat.io/openshift4/recert-rhel9@sha256:ce3a411f1379bec672a5e7baba997e16973f8a75e7785313fb933ebf3bb97ef1_amd64 as a component of Red Hat OpenShift Container Platform 4.19 | * |
| Red Hat | registry.redhat.io/openshift4/lifecycle-agent-rhel9-operator@sha256:5e4c822b3cd61b7b147f7c0497ea96770ef715f45441e14e3b2e57a29cf334b7_amd64 as a component of Red Hat OpenShift Container Platform 4.19 | * |
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
References
- https://access.redhat.com/errata/RHSA-2026:76814 advisory
- https://access.redhat.com/security/cve/CVE-2026-33814 advisory
- https://access.redhat.com/security/cve/CVE-2026-39829 advisory
- https://access.redhat.com/security/updates/classification/ advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_76814.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=2480681 issue
- https://www.cve.org/CVERecord?id=CVE-2026-39829 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-39829 advisory
- https://go.dev/cl/781641 advisory
- https://go.dev/cl/781661 advisory
- https://go.dev/issue/79565 advisory
- https://groups.google.com/g/golang-announce/c/a082jnz-LvI advisory
…and 1 more