NetSight
IP …
high7.5

CVE-2026-33870

Netty: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

Impact

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.

Affected packages

EcosystemPackageAffectedFixed in
mavenio.netty:netty-codec-http< 4.1.132.Final4.1.132.Final

Affected products

VendorProductAffected versions
NettyNetty
before 4.1.132
from 4.2.0 before 4.2.10

Weakness classification

CWE-444

References