UBUNTU-CVE-2026-84445

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Source
https://ubuntu.com/security/CVE-2026-84445
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84445.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-84445
Upstream
Published
2026-09-14T17:17:00Z
Modified
2026-10-17T13:01:12Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

gRPC-Go is the Go language implementation of gRPC. Prior to 1.82.2 and 1.83.2, servers created with xds.NewGRPCServer() allow internal/transport/http2_server.go to accept an RPC containing neither the :authority header nor the Host header, while RouteAndProcess in internal/xds/server/routing.go assumes that an authority value exists and indexes the empty slice. A remote client that can complete transport connection establishment can trigger an index-out-of-bounds panic that is not recovered by the per-RPC goroutine and terminates the entire server process. In insecure or ordinary TLS deployments the request can be unauthenticated, while strict mTLS or ALTS deployments require valid transport credentials before the malformed RPC can reach the interceptor. This issue is fixed in versions 1.82.2 and 1.83.2.

References

Affected packages

Ubuntu:26.10 / golang-github-googlecloudplatform-grpc-gcp-go

Package

Name
golang-github-googlecloudplatform-grpc-gcp-go
Purl
pkg:deb/ubuntu/golang-github-googlecloudplatform-grpc-gcp-go?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.5.3-1
1.5.3-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-googlecloudplatform-grpc-gcp-go-dev",
            "binary_version":  "1.5.3-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84445.json"