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
| Link | Resource |
|---|---|
| https://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8 | Exploit Mitigation Vendor Advisory |
| https://w4ke.info/2025/06/18/funky-chunks.html | Technical Description |
| https://w4ke.info/2025/10/29/funky-chunks-2.html | Technical Description |
| https://www.rfc-editor.org/rfc/rfc9110 | Technical Description |
Configurations
Configuration 1 (hide)
|
History
30 Mar 2026, 20:12
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Netty netty
Netty |
|
| CPE | cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:* | |
| References | () https://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8 - Exploit, Mitigation, Vendor Advisory | |
| References | () https://w4ke.info/2025/06/18/funky-chunks.html - Technical Description | |
| References | () https://w4ke.info/2025/10/29/funky-chunks-2.html - Technical Description | |
| References | () https://www.rfc-editor.org/rfc/rfc9110 - Technical Description |
Information
Published : 2026-03-27 20:16
Updated : 2026-03-30 20:12
NVD link : CVE-2026-33870
Mitre link : CVE-2026-33870
CVE.ORG link : CVE-2026-33870
JSON object : View
Products Affected
netty
- netty
CWE
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')