CVE-2026-33870

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*
cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*

History

03 Jul 2026, 13:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:34608 -

30 Jun 2026, 03:18

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:10175 -
  • () https://access.redhat.com/errata/RHSA-2026:10184 -
  • () https://access.redhat.com/errata/RHSA-2026:13571 -
  • () https://access.redhat.com/errata/RHSA-2026:14272 -
  • () https://access.redhat.com/errata/RHSA-2026:14276 -
  • () https://access.redhat.com/errata/RHSA-2026:17668 -
  • () https://access.redhat.com/errata/RHSA-2026:17789 -
  • () https://access.redhat.com/errata/RHSA-2026:18054 -
  • () https://access.redhat.com/errata/RHSA-2026:18055 -
  • () https://access.redhat.com/errata/RHSA-2026:18059 -
  • () https://access.redhat.com/errata/RHSA-2026:22619 -
  • () https://access.redhat.com/errata/RHSA-2026:7109 -
  • () https://access.redhat.com/errata/RHSA-2026:7380 -
  • () https://access.redhat.com/errata/RHSA-2026:8159 -
  • () https://access.redhat.com/errata/RHSA-2026:8509 -
  • () https://access.redhat.com/security/cve/CVE-2026-33870 -
  • () https://bugzilla.redhat.com/show_bug.cgi?id=2452453 -
  • () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33870.json -

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 - () 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 - () https://w4ke.info/2025/06/18/funky-chunks.html - Technical Description
References () https://w4ke.info/2025/10/29/funky-chunks-2.html - () https://w4ke.info/2025/10/29/funky-chunks-2.html - Technical Description
References () https://www.rfc-editor.org/rfc/rfc9110 - () https://www.rfc-editor.org/rfc/rfc9110 - Technical Description

27 Mar 2026, 20:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-27 20:16

Updated : 2026-07-15 02:20


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')