Detections
Analytics
CVE-2026-33870
high
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.
References
https://www.rfc-editor.org/rfc/rfc9110
https://w4ke.info/2025/10/29/funky-chunks-2.html
https://w4ke.info/2025/06/18/funky-chunks.html
https://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8