RHLW-2026-F00B5FBBBB907153 Lightwell Security Advisory: netty-codec-xml 4.1.100.Final-rhlw-00001

Red Hat Lightwell has released io.netty:netty-codec-xml 4.1.100.Final-rhlw-00001 with backported fixes for CVE-2026-56817 and CVE-2026-73507. CVE-2026-56817: Netty: XML External Entity XXE injection via unconfigured XML factory when DTD and entity processing are enabled CVE-2026-73507: Netty:...

io.netty/netty-codec-xml: Netty: Denial of Service via CPU Exhaustion in XmlFrameDecoder

A flaw was found in Netty's XmlFrameDecoder component. An unauthenticated remote attacker could send specially crafted XML closing-tag sequences. This could cause the system to repeatedly rescan accumulated data, leading to high CPU utilization and a denial of service DoS...

DoS (Denial of Service) io.netty:netty-codec Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 7.4.0, 7.13.0, 7.19.0, 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0, and 10.2.0 of Confluence Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vect...

CVE-2026-73507

A flaw was found in Netty's XmlFrameDecoder component. An unauthenticated remote attacker could send specially crafted XML closing-tag sequences. This could cause the system to repeatedly rescan accumulated data, leading to high CPU utilization and a denial of service DoS. Mitigation Red Hat...

DoS (Denial of Service) at io.netty:netty-codec Dependency in Bamboo Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 10.1.0, 10.2.0, 11.0.0, 12.0.0, and 12.1.0 of Bamboo Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an...

DoS (Denial of Service) io.netty:netty-codec Dependency in Crowd Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 6.2.0, 6.3.0, 7.0.0, 7.1.0, and 7.2.0 of Crowd Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an...

DoS (Denial of Service) io.netty:netty-codec Dependency in Jira Software Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 9.12.1, 10.0.0, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0, 10.7.1, 11.0.0, 11.1.0, 11.2.0, and 11.3.0 of Jira Software Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS...

DoS (Denial of Service) io.netty:netty-codec Dependency in Jira Service Management Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 10.0.0, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0, 10.7.1, 11.0.0, 11.1.0, 11.2.0, and 11.3.0 of Jira Service Management Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVS...

SUSE 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 /...

DEBIAN-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 /...

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 /...

UBUNTU-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 /...

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 /...

CVE-2026-73507 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 /...

CVE-2026-73507 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 /...

CVE-2026-73507

Netty (async network framework) has a vulnerability in io.netty.handler.codec.xml.XmlFrameDecoder.decode() where the closing-tag parser state isn’t preserved across invocations. An unauthenticated remote attacker can send repeated

EUVD-2026-58083

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 /...

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 /...

CVE-2026-73507 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 /...

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...