Echo: nodejs-16: security update to 16.20.2+e1nodejs-18: security update to 18.20.8+e2

high Tenable Self-Hosted Container Security Plugin ID 460466

Description

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

- A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a
header named `__proto__` and the application accesses `req.headersDistinct`. When this occurs,
`dest["__proto__"]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called
on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted
by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct`
access in a `try/catch`. * This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and
v25.x** (CVE-2026-21710)

Solution

Update the nodejs-16 library and its related packages to version 16.20.2+e1 or later.

See Also

https://access.redhat.com/errata/RHSA-2026:7080

https://access.redhat.com/errata/RHSA-2026:7123

https://access.redhat.com/errata/RHSA-2026:7302

https://access.redhat.com/errata/RHSA-2026:7310

https://access.redhat.com/errata/RHSA-2026:7350

https://access.redhat.com/errata/RHSA-2026:7670

https://access.redhat.com/errata/RHSA-2026:7675

https://access.redhat.com/errata/RHSA-2026:7896

https://access.redhat.com/errata/RHSA-2026:7983

https://access.redhat.com/errata/RHSA-2026:8339

https://access.redhat.com/errata/RHSA-2026:9711

https://access.redhat.com/errata/RHSA-2026:9874

https://advisory.echohq.com/cve/CVE-2026-21710

Plugin Details

Severity: High

ID: 460466

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 95.94

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-21710

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/3/2026

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-21710