VDB
RHSA-2026:79326
RHSA-2026:79326
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in gRPC-Go. Servers created with xds.NewGRPCServer() can be exploited by a remote client sending a malformed RPC request that lacks the required :authority or Host headers. This can trigger an index-out-of-bounds panic, leading to the termination of the entire server process and a Denial of Service (DoS). In some deployments, this attack can be unauthenticated.
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/helm-cli/helm-cli-rhel9@sha256:755c4afc353dd874fc36431baf4137741f0d59b7b44bbbc4bc7f5f4c5637cdbd_s390x as a component of Helm CLI 4.3 | * |
| Red Hat | registry.redhat.io/helm-cli/helm-cli-rhel9@sha256:dbe85e9563dc51e81c18d0b9a1ca5e8d8c5ff0f509ab8fb06a8eead495e1f3fa_ppc64le as a component of Helm CLI 4.3 | * |
| Red Hat | registry.redhat.io/helm-cli/helm-cli-rhel9@sha256:e96947b8bdefdd349a5a80aad236d8a03cc10ec557a53e9951281fa481c3cfea_amd64 as a component of Helm CLI 4.3 | * |
| Red Hat | registry.redhat.io/helm-cli/helm-cli-rhel9@sha256:6283ec75e97316605c6dd8400413674ec504447752156ae74d2737d37f76ef86_arm64 as a component of Helm CLI 4.3 | * |
Timeline
- Oct 8, 2026 CVE Published
- Oct 23, 2026 CVE Updated
- Oct 23, 2026 Distribution Patch
- Oct 23, 2026 Distribution Patch
- Oct 23, 2026 Security Advisory
- Oct 23, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:79326 advisory
- https://access.redhat.com/security/cve/CVE-2026-84445 advisory
- https://access.redhat.com/security/updates/classification/ advisory
- https://catalog.redhat.com/software/containers/helm-cli/helm-cli-rhel9 advisory
- https://helm.sh/docs/ advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_79326.json advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2533175 issue
- https://www.cve.org/CVERecord?id=CVE-2026-84445 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-84445 advisory
- https://github.com/grpc/grpc-go/commit/3822494d8ea03b992c089fd2a195f041762fffb7 advisory
- https://github.com/grpc/grpc-go/commit/8668b69c167df908b6b3666dcbf40992b9e932a4 advisory
- https://github.com/grpc/grpc-go/commit/93e31b48545e2a8aaeb6e06b47fb249f94e6297f advisory
- https://github.com/grpc/grpc-go/issues/9354 advisory
- https://github.com/grpc/grpc-go/pull/9365 advisory
- https://github.com/grpc/grpc-go/pull/9366 advisory
- https://github.com/grpc/grpc-go/pull/9367 advisory
- https://github.com/grpc/grpc-go/releases/tag/v1.82.2 advisory
- https://github.com/grpc/grpc-go/releases/tag/v1.83.2 advisory
- https://github.com/grpc/grpc-go/security/advisories/GHSA-2v4p-qf9q-27wj advisory