SCA: security update for github.com/labstack/echo/v4, github.com/labstack/echo/v5 (GHSA-9969-6676-49h5)

high Tenable Self-Hosted Container Security Plugin ID 477232

Description

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

- Echo is a Go web framework. From 4.15.0 until 4.16.1 and 5.4.1, Echo's Proxy middleware can retain a
handler, copy goroutines, and network connections after a WebSocket client disconnects when the upstream
keeps its connection open. The raw proxy waits for both copy directions without reliably closing the peer
connection when one direction ends, including when a rejected upgrade response uses HTTP keep-alive.
Repeated connections can accumulate resources and cause denial of service, depending on proxy-route
accessibility, upstream behavior, and connection deadlines. This issue is fixed in 4.16.1 and 5.4.1.
(CVE-2026-118262)

Solution

Update the github.com/labstack/echo/v4 library and its related packages to version 4.16.1 or later.

See Also

https://github.com/advisories/GHSA-9969-6676-49h5

Plugin Details

Severity: High

ID: 477232

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 10/24/2026

Updated: 10/29/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

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-2026-118262

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: 8.2

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/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: 10/23/2026

Vulnerability Publication Date: 10/23/2026

Reference Information

CVE: CVE-2026-118262

cwe: CWE-772