{"id":"CVE-2026-44890","title":"Netty is a network application framework for development of protocol servers and clients","summary":"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 …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400","CWE-770"],"vendor":"netty","product":"netty","affected":["netty < 4.1.135","netty >= 4.2.0, < 4.2.15"],"patched":["netty 4.2.15"],"published":"2026-06-11","updated":"2026-09-18","sourceUpdated":"2026-09-18T13:18:24.623","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44890","references":[{"url":"https://github.com/netty/netty/releases/tag/netty-4.1.135.Final","label":"security-advisories@github.com"},{"url":"https://github.com/netty/netty/releases/tag/netty-4.2.15.Final","label":"security-advisories@github.com"},{"url":"https://github.com/netty/netty/security/advisories/GHSA-6ghj-frrj-jjj3","label":"security-advisories@github.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:37390","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:41951","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:50085","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:53644","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:53645","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:53646","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-44890","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2488053","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44890.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:53806","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-44890"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44890"},{"url":"https://github.com/advisories/GHSA-6ghj-frrj-jjj3"}],"tags":["nvd","cve.org","csaf","vex","red-hat","ghsa","maven"],"epss":0.00461,"epssPercentile":0.39218,"aliases":["GHSA-6ghj-frrj-jjj3"],"ecosystem":"maven","ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-06-12T10:05:11.294129Z"},"ingestedAt":"2026-07-07T15:41:59.865Z","slug":"CVE-2026-44890","body":"## Overview\n\nNetty 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.\n\n## Affected\n\n- `netty < 4.1.135`\n- `netty >= 4.2.0, < 4.2.15`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `netty 4.2.15`\n\n## Package advisory (CVE-2026-44890)\n\nAffected packages:\n\n- `io.netty:netty-codec-redis >= 4.2.0.Final, <= 4.2.14.Final`\n- `io.netty:netty-codec-redis <= 4.1.134.Final`\n\nPatched in:\n\n- `io.netty:netty-codec-redis 4.2.15.Final`\n- `io.netty:netty-codec-redis 4.1.135.Final`\n\nSource: https://github.com/advisories/GHSA-6ghj-frrj-jjj3\n\n## Vendor advisories\n\n- **RHSA-2026:53644** · Red Hat · fixed in: Red Hat JBoss EAP 7.4 ELS for RHEL 7 Server · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53644)\n- **RHSA-2026:41951** · Red Hat · fixed in: Red Hat Data Grid 8.6.2 · released 2026-07-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:41951)\n- **RHSA-2026:53806** · Red Hat · fixed in: Red Hat JBoss Enterprise Application Platform 7.4.25 · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53806)\n- **RHSA-2026:50085** · Red Hat · fixed in: Red Hat JBoss Enterprise Application Platform 8.1 · released 2026-08-04 · [advisory](https://access.redhat.com/errata/RHSA-2026:50085)\n- **RHSA-2026:37390** · Red Hat · fixed in: Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16 · released 2026-07-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:37390)\n- **Red Hat VEX** · Important · affected: Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform Expansion Pack · no fix planned: Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform Expansion Pack · updated 2026-09-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44890.json)\n- **RHSA-2026:53645** · Red Hat · fixed in: Red Hat JBoss EAP 7.4 ELS for RHEL 8 · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53645)\n- **RHSA-2026:53646** · Red Hat · fixed in: Red Hat JBoss EAP 7.4 ELS for RHEL 9 · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53646)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}