CVE-2026-73507

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.xml.XmlFrameDecoder.decode() failed to preserve closing-tag parser state across invocations, so an unauthenticated remote attacker could trickle-feed repeated </ sequences that repeatedly rescanned the accumulated buffer and exhausted an EventLoop thread's CPU, causing denial of service with a maxFrameLength of 1 MB. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*
cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*

History

23 Sep 2026, 15:40

Type Values Removed Values Added
CPE cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*
First Time Netty netty
Netty
References () https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b - () https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b - Patch
References () https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 - () https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 - Patch
References () https://github.com/netty/netty/releases/tag/netty-4.1.136.Final - () https://github.com/netty/netty/releases/tag/netty-4.1.136.Final - Release Notes
References () https://github.com/netty/netty/releases/tag/netty-4.2.16.Final - () https://github.com/netty/netty/releases/tag/netty-4.2.16.Final - Release Notes
References () https://github.com/netty/netty/security/advisories/GHSA-v74w-7mr3-4qg3 - () https://github.com/netty/netty/security/advisories/GHSA-v74w-7mr3-4qg3 - Vendor Advisory

Information

Published : 2026-08-13 15:20

Updated : 2026-09-23 15:40


NVD link : CVE-2026-73507

Mitre link : CVE-2026-73507

CVE.ORG link : CVE-2026-73507


JSON object : View

Products Affected

netty

  • netty
CWE
CWE-400

Uncontrolled Resource Consumption