Detections
Analytics

Echo: io.netty:netty-codec-http: security update to 4.1.132.Final

high Tenable Cloud Security Plugin ID 463913

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 4.1.132.Final
 and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension
 values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue.
 (CVE-2026-33870)

Solution

Update the io.netty:netty-codec-http library and its related packages to version 4.1.132.Final or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-33870

Plugin Details

Severity: High

ID: 463913

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.61

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-2026-33870

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-33870