VDB
RHSA-2026:74581
RHSA-2026:74581
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 | skopeo-tests-2:1.18.1-6.el9_6.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-tests-2:1.18.1-6.el9_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-tests-2:1.18.1-6.el9_6.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-debugsource-2:1.18.1-6.el9_6.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-debuginfo-2:1.18.1-6.el9_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-2:1.18.1-6.el9_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-2:1.18.1-6.el9_6.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-debugsource-2:1.18.1-6.el9_6.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-debuginfo-2:1.18.1-6.el9_6.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-debuginfo-2:1.18.1-6.el9_6.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-debuginfo-2:1.18.1-6.el9_6.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-2:1.18.1-6.el9_6.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-tests-2:1.18.1-6.el9_6.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-debugsource-2:1.18.1-6.el9_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-debugsource-2:1.18.1-6.el9_6.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-2:1.18.1-6.el9_6.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
| Red Hat | skopeo-2:1.18.1-6.el9_6.1.src as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 1.18.1-6.el9 |
Timeline
- Oct 1, 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-2026:74581 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_74581.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