Echo: google.golang.org/grpc: security update to 1.82.2

high Tenable Cloud Security Plugin ID 457698

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- 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.
(CVE-2026-84445)

Solution

Update the google.golang.org/grpc library and its related packages to version 1.82.2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-84445

Plugin Details

Severity: High

ID: 457698

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-84445

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: 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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 9/8/2026

Reference Information

CVE: CVE-2026-84445