Red Hat Lightwell has released io.netty:netty-resolver-dns 4.1.100.Final-rhlw-00001 with backported fixes for CVE-2026-45673, CVE-2026-45674, and CVE-2026-47691.
CVE-2026-45673: Netty: DNS Cache Poisoning due to Predictable PRNG and Default Static Source Port
CVE-2026-45674: Netty Vulnerable to DNS Cache Poisoning via Missing Bailiwick Checks in CNAME Records
CVE-2026-47691: Netty has Insufficient Bailiwick Validation for NS Records
This patched artifact is a drop-in replacement for io.netty:netty-resolver-dns 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-2026-70779bc964a31a7e.json"