{"id":"RHLW-2026-2e889feb45fc9875","summary":"Lightwell Security Advisory: netty-codec-haproxy 4.1.100.Final-rhlw-00001","details":"Red Hat Lightwell has released io.netty:netty-codec-haproxy 4.1.100.Final-rhlw-00001 with backported fixes for CVE-2026-44893, CVE-2026-48059, CVE-2026-55851, and CVE-2026-59919.\n\nCVE-2026-44893: Netty: HAProxy SSL TLV parsing leaks retained slice on invalid TLV length\n\nCVE-2026-48059: Netty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Memory Exhaustion\n\nCVE-2026-55851: Netty codec-haproxy: Signed-Byte Sentinel Collision in HAProxyMessageDecoder Leads to Unbounded Memory Exhaustion\n\nCVE-2026-59919: Netty: HAProxy V1 Protocol CRLF Injection via AF_UNIX Address\n\nThis patched artifact is a drop-in replacement for io.netty:netty-codec-haproxy 4.1.100.Final from Maven Central.","modified":"2026-10-22T00:08:30.805533011Z","published":"2026-10-12T16:55:07Z","upstream":["CVE-2026-44893","CVE-2026-48059","CVE-2026-55851","CVE-2026-59919","GHSA-cc37-9q2j-3hfv","GHSA-h2qv-fj59-j46j","GHSA-q6cq-mhr2-jmr5","GHSA-wh89-7897-x99h"],"references":[{"type":"WEB","url":"https://github.com/netty/netty/releases/tag/netty-4.1.135.Final"},{"type":"WEB","url":"https://github.com/netty/netty/releases/tag/netty-4.2.15.Final"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44893.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:26017"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:26018"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:26586"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:34608"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:36820"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:37390"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:41951"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:48151"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:50085"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53644"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53645"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53646"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:54435"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:65126"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:66488"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-44893"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44893.json"},{"type":"ADVISORY","url":"https://github.com/netty/netty/security/advisories/GHSA-cc37-9q2j-3hfv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44893"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-cc37-9q2j-3hfv"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48059.json"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-48059"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48059.json"},{"type":"ADVISORY","url":"https://github.com/netty/netty/security/advisories/GHSA-h2qv-fj59-j46j"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48059"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-h2qv-fj59-j46j"},{"type":"WEB","url":"https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"},{"type":"WEB","url":"https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55851.json"},{"type":"ADVISORY","url":"https://github.com/netty/netty/security/advisories/GHSA-q6cq-mhr2-jmr5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55851"},{"type":"FIX","url":"https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"},{"type":"FIX","url":"https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-q6cq-mhr2-jmr5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59919.json"},{"type":"ADVISORY","url":"https://github.com/netty/netty/security/advisories/GHSA-wh89-7897-x99h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59919"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-wh89-7897-x99h"}],"affected":[{"package":{"name":"io.netty:netty-codec-haproxy","ecosystem":"Red Hat Lightwell:Maven","purl":"pkg:maven/io.netty/netty-codec-haproxy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.100.Final-rhlw-00001"}]}],"versions":["4.0.29.Final","4.0.30.Final","4.0.31.Final","4.0.32.Final","4.0.33.Final","4.0.34.Final","4.0.35.Final","4.0.36.Final","4.0.37.Final","4.0.38.Final","4.0.39.Final","4.0.40.Final","4.0.41.Final","4.0.42.Final","4.0.43.Final","4.0.44.Final","4.0.45.Final","4.0.46.Final","4.0.47.Final","4.0.48.Final","4.0.49.Final","4.0.50.Final","4.0.51.Final","4.0.52.Final","4.0.53.Final","4.0.54.Final","4.0.55.Final","4.0.56.Final","4.1.0.Beta1","4.1.0.Beta2","4.1.0.Beta3","4.1.0.Beta4","4.1.0.Beta5","4.1.0.Beta6","4.1.0.Beta7","4.1.0.Beta8","4.1.0.CR1","4.1.0.CR2","4.1.0.CR3","4.1.0.CR4","4.1.0.CR5","4.1.0.CR6","4.1.0.CR7","4.1.0.Final","4.1.1.Final","4.1.10.Final","4.1.100.Final","4.1.11.Final","4.1.12.Final","4.1.13.Final","4.1.14.Final","4.1.15.Final","4.1.16.Final","4.1.17.Final","4.1.18.Final","4.1.19.Final","4.1.2.Final","4.1.20.Final","4.1.21.Final","4.1.22.Final","4.1.23.Final","4.1.24.Final","4.1.25.Final","4.1.26.Final","4.1.27.Final","4.1.28.Final","4.1.29.Final","4.1.3.Final","4.1.30.Final","4.1.31.Final","4.1.32.Final","4.1.33.Final","4.1.34.Final","4.1.35.Final","4.1.36.Final","4.1.37.Final","4.1.38.Final","4.1.39.Final","4.1.4.Final","4.1.40.Final","4.1.41.Final","4.1.42.Final","4.1.43.Final","4.1.44.Final","4.1.45.Final","4.1.46.Final","4.1.47.Final","4.1.48.Final","4.1.49.Final","4.1.5.Final","4.1.50.Final","4.1.51.Final","4.1.52.Final","4.1.53.Final","4.1.54.Final","4.1.55.Final","4.1.56.Final","4.1.57.Final","4.1.58.Final","4.1.59.Final","4.1.6.Final","4.1.60.Final","4.1.61.Final","4.1.62.Final","4.1.63.Final","4.1.64.Final","4.1.65.Final","4.1.66.Final","4.1.67.Final","4.1.68.Final","4.1.69.Final","4.1.7.Final","4.1.70.Final","4.1.71.Final","4.1.72.Final","4.1.73.Final","4.1.74.Final","4.1.75.Final","4.1.76.Final","4.1.77.Final","4.1.78.Final","4.1.79.Final","4.1.8.Final","4.1.80.Final","4.1.81.Final","4.1.82.Final","4.1.83.Final","4.1.84.Final","4.1.85.Final","4.1.86.Final","4.1.87.Final","4.1.88.Final","4.1.89.Final","4.1.9.Final","4.1.90.Final","4.1.91.Final","4.1.92.Final","4.1.93.Final","4.1.94.Final","4.1.95.Final","4.1.96.Final","4.1.97.Final","4.1.98.Final","4.1.99.Final"],"database_specific":{"lightwell":{"repository_url":"https://packages.redhat.com/lightwell/java/remediated/","backport_base_version":"4.1.100.Final","remediated_version":"4.1.100.Final-rhlw-00001"},"source":"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-2e889feb45fc9875.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}],"credits":[{"name":"Red Hat Lightwell","type":"REMEDIATION_DEVELOPER"}]}