SCA: security update for io.netty:netty-handler-proxy (GHSA-45q3-82m4-75jr)

medium Tenable Cloud Security Plugin ID 441294

Description

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

- Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and
4.1.133.Final, Netty's HttpProxyHandler constructs HTTP CONNECT requests with header validation explicitly
disabled. The newInitialMessage() method creates headers using
DefaultHttpHeadersFactory.headersFactory().withValidation(false), then adds user-provided outboundHeaders
without any CRLF validation. This allows an attacker who can influence the outbound headers to inject
arbitrary HTTP headers into the CONNECT request sent to the proxy server. This vulnerability is fixed in
4.2.13.Final and 4.1.133.Final. (CVE-2026-42578)

Solution

Update the io.netty:netty-handler-proxy library and its related packages to version 4.1.133.Final or later.

Plugin Details

Severity: Medium

ID: 441294

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 5/7/2026

Updated: 7/8/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-42578

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:H/A:N

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 2.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/7/2026

Vulnerability Publication Date: 5/7/2026

Reference Information

CVE: CVE-2026-42578

cwe: CWE-113

Detections

Analytics