Detections
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SCA: security update for io.netty:netty-codec-http (GHSA-6jqx-86gh-f27w)

high Tenable Cloud Security Plugin ID 445175

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. Prior to
 4.1.136.Final and 4.2.16.Final, Netty's SPDY SETTINGS decoder accepts a peer-declared SETTINGS entry count
 up to the 24-bit frame-length limit and materializes every unique setting ID in
 `DefaultSpdySettingsFrame`, allowing a remote SPDY/3.1 peer to send a syntactically valid roughly 2 MiB
 SETTINGS frame that creates 262144 map entries and amplifies network input into heap growth and ordered-
 map insertion work. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final. (CVE-2026-55831)

Solution

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

See Also

https://github.com/advisories/GHSA-6jqx-86gh-f27w

Plugin Details

Severity: High

ID: 445175

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 7/23/2026

Updated: 7/23/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

Vendor

Vendor Severity: High

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-2026-55831

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: 7/22/2026

Vulnerability Publication Date: 7/20/2026

Reference Information

CVE: CVE-2026-55831

cwe: CWE-400