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SCA: security update for io.netty:netty-codec-http3 (GHSA-2c5c-chwr-9hqw)

high Tenable Cloud Security Plugin ID 441364

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, when decoding
 header blocks, the non-Huffman branch of
 io.netty.handler.codec.http3.QpackDecoder#decodeHuffmanEncodedLiteral may execute new byte[length] for a
 string literal before verifying that length bytes are actually present in the compressed field section.
 The wire encoding allows a very large length to be expressed in few bytes. There is no check that length
 <= in.readableBytes() before new byte[length]. This vulnerability is fixed in 4.2.13.Final.
 (CVE-2026-42582)

Solution

Update the io.netty:netty-codec-http3 library and its related packages to version 4.2.13.Final or later.

See Also

https://github.com/advisories/GHSA-2c5c-chwr-9hqw

Plugin Details

Severity: High

ID: 441364

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 5/7/2026

Updated: 7/1/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

Vendor

Vendor Severity: 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-2026-42582

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: 5/7/2026

Vulnerability Publication Date: 5/7/2026

Reference Information

CVE: CVE-2026-42582