Netty MadeYouReset HTTP/2 DDoS Vulnerability_CVE-2025-55163

8.2 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Description

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit - which results in resource exhaustion and distributed denial of service. This issue has been patched in versions 4.1.124.Final and 4.2.4.Final.

Basic Information

ID CVE-2025-55163

Source GitHub_M

Published Aug 13, 2025 at 14:17

Modified Aug 13, 2025 at 14:37

Affected Product

Vendor netty

Product netty

Version < 4.1.124.Final

Affected Versions netty netty < 4.1.124.Final
netty netty < 4.2.4.Final

CWE Classification

CWE-770

References

github.com /netty/netty/security/advisories/GHSA-prj3-ccx8-p6x4

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    "published": "2025-08-13T14:17:36.111Z",
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