Detections
Analytics

SCA: security update for io.netty:netty-codec-xml (GHSA-4qhr-g3c6-fcfx)

high Tenable Cloud Security Plugin ID 445181

Description

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

 - Netty is a network application framework for development of protocol servers and clients. In versions
 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, any caller that can deliver bytes
 to a Netty channel pipeline containing `XmlDecoder` can send XML with a `DOCTYPE` declaration to an
 `AsyncXMLInputFactory` instantiated with no security configuration, leaving DTD and entity handling active
 depending on Aalto XML async parser behavior and creating conditional XML external entity risk. This issue
 is fixed in versions 4.1.136.Final and 4.2.16.Final. (CVE-2026-56817)

Solution

Update the io.netty:netty-codec-xml library and its related packages to version 4.1.136.Final or later.

See Also

https://github.com/advisories/GHSA-4qhr-g3c6-fcfx

Plugin Details

Severity: High

ID: 445181

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 7/23/2026

Updated: 7/23/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.63

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-56817

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.3

Threat Score: 4.8

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/22/2026

Vulnerability Publication Date: 7/21/2026

Reference Information

CVE: CVE-2026-56817

cwe: CWE-611