Netty HTTP/3 QPACK Blocked Streams Memory Exhaustion_CVE-2026-48748

7.5 / 10

HIGH

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

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.

Basic Information

ID CVE-2026-48748

Source GitHub_M

Published Jun 12, 2026 at 14:45

Affected Product

Vendor netty

Product netty

Version >= 4.2.0.Final, < 4.2.15.Final

Affected Versions netty netty >= 4.2.0.Final, < 4.2.15.Final

CWE Classification

CWE-770

References

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    "published": "2026-06-12T14:45:04.763Z",
    "modified": "2026-06-12T14:45:04.763Z",
    "type": "cve",
    "title": "Netty HTTP/3 QPACK Blocked Streams Memory Exhaustion",
    "source": "GitHub_M",
    "references": "https://github.com/netty/netty/security/advisories/GHSA-4grm-h2qv-h6w6\nhttps://github.com/netty/netty/releases/tag/netty-4.2.15.Final",
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