VULNERABILITY INTELLIGENCE

CVE-2026-33870

CVSS score7.5 HIGH
EPSS probability0.70%
CISA KEVNot currently listed
Published2026-03-27
Last modified2026-09-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-444
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-444

Primary references