{"id":"CVE-2026-44890","aliases":["GHSA-6ghj-frrj-jjj3"],"url":"https://o3.security/vulnerability/CVE-2026-44890","summary":"Netty has Unbounded Direct Memory Consumption in its RedisDecoder","details":"Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending crafted Redis payloads across multiple connections without `\\r\\n`. This exhausts the server's direct memory pool (OutOfDirectMemoryError), preventing legitimate connections from being processed. Versions 4.1.135.Final and 4.2.15.Final patch the issue.","published":"2026-06-11T20:52:50.980Z","modified":"2026-08-13T04:02:27.600364577Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00449,"percentile":0.37063,"asOf":"2026-08-12"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"io.netty:netty-codec-redis","fixedVersion":"4.2.15.Final"},{"ecosystem":"Maven","name":"io.netty:netty-codec-redis","fixedVersion":"4.1.135.Final"}],"fix":null,"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-2026-44890.json"},{"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-2026:50085"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53644"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53806"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-44890"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44890.json"},{"type":"ADVISORY","url":"https://github.com/netty/netty/security/advisories/GHSA-6ghj-frrj-jjj3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44890"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2488053"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-13T04:02:27.600364577Z"}}