Detections
Analytics

Echo: io.netty:netty-codec-http: security update to 4.1.129.Final

medium Tenable Cloud Security Plugin ID 458014

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. In versions prior to 4.1.129.Final
 and 4.2.8.Final, the `io.netty.handler.codec.http.HttpRequestEncoder` has a CRLF injection with the
 request URI when constructing a request. This leads to request smuggling when `HttpRequestEncoder` is used
 without proper sanitization of the URI. Any application / framework using `HttpRequestEncoder` can be
 subject to be abused to perform request smuggling using CRLF injection. Versions 4.1.129.Final and
 4.2.8.Final fix the issue. (CVE-2025-67735)

Solution

Update the io.netty:netty-codec-http library and its related packages to version 4.1.129.Final or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-67735

Plugin Details

Severity: Medium

ID: 458014

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.71

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2025-67735

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 12/15/2025

Reference Information

CVE: CVE-2025-67735