The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor Netty HTTP server to consume an excessive amount of memory. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier
References
History

Wed, 02 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Pivotal
Pivotal reactor Netty
CPEs cpe:2.3:a:pivotal:reactor_netty:*:*:*:*:*:*:*:*
Vendors & Products Pivotal
Pivotal reactor Netty

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 27 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770

Thu, 27 Aug 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring reactor Netty
Vendors & Products Spring
Spring reactor Netty

Thu, 27 Aug 2026 01:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

Thu, 27 Aug 2026 00:30:00 +0000

Type Values Removed Values Added
Description The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor Netty HTTP server to consume an excessive amount of memory. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier
Title Reactor Netty HTTP Server Denial of Service With Pipelined Requests
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published: 2026-08-26T23:49:26.907Z

Updated: 2026-08-27T13:12:29.108Z

Reserved: 2026-05-20T10:00:57.077Z

Link: CVE-2026-47874

cve-icon Vulnrichment

Updated: 2026-08-27T13:12:23.967Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-27T01:17:33.620

Modified: 2026-09-02T15:50:42.727

Link: CVE-2026-47874

cve-icon Redhat

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