Showing 2 vulnerabilities on this page for io.netty:netty-codec-xml

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VulnerabilityTitle and contextCVSSEPSSPoCsSignalsSTIX action

Netty: Denial of Service in XmlFrameDecoder via CPU Exhaustion

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 a

CWE-400Aug 13, 2026
CVSS7.5v3.1EPSS-PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

Netty: XML External Entity (XXE) injection via unconfigured XML factory when DTD and entity processing are enabled

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, any caller that can deliver bytes to a Netty channel pipeline containing `XmlDecoder` can send XML with a `DOCTYPE` declaration to an `AsyncXMLInputFactory` instantiated with no security configuration, leaving DTD and entity handling active depending on Aalto XML async parser behavior and creating conditional XML external en

CWE-611Jul 21, 2026
CVSS8.3v4.0EPSS0.371%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX