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.
References
Configurations
Configuration 1 (hide)
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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 - Patch | |
| References | () https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 - Patch | |
| References | () 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 - Release Notes | |
| References | () 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
