HTTP Request Smuggling Affecting netty-transport-sctp package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.28% (19th percentile)

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  • Snyk IDSNYK-RHEL7-NETTYTRANSPORTSCTP-21089033
  • published16 Oct 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

CVE-2026-89044  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 netty-transport-sctp.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netty-transport-sctp package and not the netty-transport-sctp package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding headers across multiple lines or use values like 'chunked, xchunked' to bypass validation and decode messages as chunked when the final coding is not chunked, enabling request smuggling attacks.

CVSS Base Scores

version 3.1