Detections
Analytics

SCA: security update for go.etcd.io/etcd/v3 (GHSA-6vch-q96h-7gc3)

high Tenable Cloud Security Plugin ID 445912

Description

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

 - etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33,
 3.6.14, and 3.7.1, a network attacker who can reach an etcd TLS listener can open many TCP connections and
 never send a ClientHello. In client/pkg/transport/listener_tls.go, each connection handled by
 tlsListener.acceptLoop spawns a goroutine that blocks indefinitely inside tls.Conn.Handshake() and remains
 tracked in the pending map. Unbounded goroutine and map growth can exhaust memory in the etcd process,
 causing loss of availability for the cluster and, when etcd backs Kubernetes, the control plane. This
 issue is fixed in versions 3.5.33, 3.6.14, and 3.7.1. (CVE-2026-73500)

Solution

Update the go.etcd.io/etcd/v3 library and its related packages to version 3.5.33 or later.

See Also

https://github.com/advisories/GHSA-6vch-q96h-7gc3

Plugin Details

Severity: High

ID: 445912

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/13/2026

Updated: 8/13/2026

Risk Information

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-73500

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: 7/24/2026

Vulnerability Publication Date: 7/24/2026

Reference Information

CVE: CVE-2026-73500

cwe: CWE-770