Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, a remote user can trigger a Denial of Service (DoS) against a Netty HTTP/2 server by sending a flood of `CONTINUATION` frames. The server's lack of a limit on the number of `CONTINUATION` frames, combined with a bypass of existing size-based mitigations using zero-byte frames, allows an user to cause excessive CPU consumption with minimal bandwidth, rendering the server unresponsive. Versions 4.1.132.Final and 4.2.10.Final fix the issue.
References
Configurations
Configuration 1 (hide)
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History
03 Jul 2026, 13:17
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| References |
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30 Jun 2026, 03:18
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30 Mar 2026, 20:10
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| References | () https://github.com/netty/netty/security/advisories/GHSA-w9fj-cfpg-grvv - Vendor Advisory | |
| CPE | cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:* | |
| First Time |
Netty netty
Netty |
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
27 Mar 2026, 20:16
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| New CVE |
Information
Published : 2026-03-27 20:16
Updated : 2026-08-04 13:18
NVD link : CVE-2026-33871
Mitre link : CVE-2026-33871
CVE.ORG link : CVE-2026-33871
JSON object : View
Products Affected
netty
- netty
CWE
CWE-770
Allocation of Resources Without Limits or Throttling
