Red Hat Lightwell has released io.netty:netty-transport-sctp 4.1.100.Final-rhlw-00001 with backported fixes for CVE-2026-46340 and CVE-2026-59902.
CVE-2026-46340: Netty: SCTP reassembly nests buffers without bound
CVE-2026-59902: Netty: Memory Exhaustion in SctpMessageCompletionHandler
This patched artifact is a drop-in replacement for io.netty:netty-transport-sctp 4.1.100.Final from Maven Central.
{
"backport_base_version": "4.1.100.Final",
"remediated_version": "4.1.100.Final-rhlw-00001",
"repository_url": "https://packages.redhat.com/lightwell/java/remediated/"
}
"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-4140a7a9c48db376.json"