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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.

PUBLISHED Reserved 2025-08-07 | Published 2025-08-13 | Updated 2025-08-13 | Assigner GitHub_M




HIGH: 8.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

< 4.1.124.Final
affected

< 4.2.4.Final
affected

References

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

cve.org (CVE-2025-55163)

nvd.nist.gov (CVE-2025-55163)

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