{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2026-33871","title":"Title"},{"category":"description","text":"Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, a remote user can trigger a Denial of Service (DoS) against a Netty HTTP/2 server by sending a flood of `CONTINUATION` frames. The server's lack of a limit on the number of `CONTINUATION` frames, combined with a bypass of existing size-based mitigations using zero-byte frames, allows an user to cause excessive CPU consumption with minimal bandwidth, rendering the server unresponsive. Versions 4.1.132.Final and 4.2.10.Final fix the issue.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2026-33871","url":"https://www.suse.com/security/cve/CVE-2026-33871"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1261043 for CVE-2026-33871","url":"https://bugzilla.suse.com/1261043"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:1353-1","url":"https://lists.suse.com/pipermail/sle-updates/2026-April/045563.html"}],"title":"SUSE CVE CVE-2026-33871","tracking":{"current_release_date":"2026-09-15T02:09:32Z","generator":{"date":"2026-03-30T23:27:14Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2026-33871","initial_release_date":"2026-03-30T23:27:14Z","revision_history":[{"date":"2026-03-30T23:27:14Z","number":"2","summary":"vulnerabilities added,references added,severity changed from  to moderate"},{"date":"2026-03-31T23:27:23Z","number":"3","summary":"updates entered QA"},{"date":"2026-04-15T23:26:12Z","number":"4","summary":"more updates released,references added"},{"date":"2026-06-26T02:20:48Z","number":"5","summary":"more updates marked as not affected"},{"date":"2026-09-11T01:27:20Z","number":"6","summary":"more updates marked as not affected"},{"date":"2026-09-11T16:32:57Z","number":"7","summary":"unknown changes"},{"date":"2026-09-15T02:09:32Z","number":"8","summary":"unknown 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In versions prior to 4.1.132.Final and 4.2.10.Final, a remote user can trigger a Denial of Service (DoS) against a Netty HTTP/2 server by sending a flood of `CONTINUATION` frames. The server's lack of a limit on the number of `CONTINUATION` frames, combined with a bypass of existing size-based mitigations using zero-byte frames, allows an user to cause excessive CPU consumption with minimal bandwidth, rendering the server unresponsive. Versions 4.1.132.Final and 4.2.10.Final fix the issue.","title":"CVE description"}],"product_status":{"known_not_affected":["SUSE Linux Enterprise Desktop 15 SP7:netty3","SUSE Linux Enterprise High Performance Computing 15 SP2:netty3","SUSE Linux Enterprise High Performance Computing 15 SP3:netty3","SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:netty3","SUSE Linux Enterprise High Performance Computing 15 SP4:netty3","SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:netty3","SUSE Linux Enterprise High Performance Computing 15 SP5:netty3","SUSE Linux Enterprise Module for Development Tools 15 SP7:netty3","SUSE Linux Enterprise Server 15 SP2-LTSS:netty3","SUSE Linux Enterprise Server 15 SP2:netty3","SUSE Linux Enterprise Server 15 SP3-LTSS:netty3","SUSE Linux Enterprise Server 15 SP3:netty3","SUSE Linux Enterprise Server 15 SP4-LTSS:netty3","SUSE Linux Enterprise Server 15 SP4:netty3","SUSE Linux Enterprise Server 15 SP5-LTSS:netty3","SUSE Linux Enterprise 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CVE-2026-33871","url":"https://bugzilla.suse.com/1261043"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:1353-1","url":"https://lists.suse.com/pipermail/sle-updates/2026-April/045563.html"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Desktop 15 SP7:netty-tcnative-2.0.75-150200.3.36.1","SUSE Linux Enterprise Module for Development Tools 15 SP7:netty-tcnative-2.0.75-150200.3.36.1","SUSE Linux Enterprise Module for Package Hub 15 SP7:netty-4.1.132-150200.4.43.1","SUSE Linux Enterprise Module for Package Hub 15 SP7:netty-javadoc-4.1.132-150200.4.43.1","SUSE Linux Enterprise Server 15 SP4-TERADATA:netty-tcnative-2.0.75-150200.3.36.1","SUSE Linux Enterprise Server 15 SP7:netty-tcnative-2.0.75-150200.3.36.1","SUSE Linux Enterprise Server for SAP Applications 15 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