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Description

Netty is a network application framework for development of protocol servers and clients. Prior to version 4.2.15.Final, a memory exhaustion vulnerability in the Netty HTTP/3 codec allows the creation of an infinite number of blocked streams, which can cause OOM error. Version 4.2.15.Final patches the issue.

PUBLISHED Reserved 2026-05-22 | Published 2026-06-12 | Updated 2026-06-13 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

>= 4.2.0.Final, < 4.2.15.Final
affected

References

github.com/.../netty/security/advisories/GHSA-4grm-h2qv-h6w6

github.com/netty/netty/releases/tag/netty-4.2.15.Final

cve.org (CVE-2026-48748)

nvd.nist.gov (CVE-2026-48748)

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