Detections
Analytics

Echo: google.golang.org/grpc: security update to 1.83.1rancher-2.13: security update to 2.13.9+e5

high Tenable Self-Hosted Container Security Plugin ID 462851

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 1.83.1, internal/transport/transport.go stores
 each fragmented HTTP/2 DATA frame as a separate recvMsg in recvBuffer, so millions of one-byte frames can
 consume disproportionate heap memory even when payload bytes remain within connection and stream flow-
 control windows. An unauthenticated remote attacker can use concurrent multiplexed streams to exhaust
 process memory and cause a runtime panic or out-of-memory termination. Receive-buffer compaction is
 enabled by default and can be controlled temporarily with
 GRPC_GO_EXPERIMENTAL_ENABLE_RECEIVE_BUFFER_COMPACTION. This issue is fixed in version 1.83.1.
 (CVE-2026-84304)

Solution

Update the google.golang.org/grpc library and its related packages to version 1.83.1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-84304

Plugin Details

Severity: High

ID: 462851

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

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-2026-84304

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: 9/8/2026

Vulnerability Publication Date: 9/1/2026

Reference Information

CVE: CVE-2026-84304