{"id":"CVE-2025-55163","summary":"Netty MadeYouReset HTTP/2 DDoS Vulnerability","details":"Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit - which results in resource exhaustion and distributed denial of service. This issue has been patched in versions 4.1.124.Final and 4.2.4.Final.","aliases":["GHSA-prj3-ccx8-p6x4"],"modified":"2026-04-13T04:28:04.724217Z","published":"2025-08-13T14:17:36.111Z","related":["CGA-4jwv-55ph-4c36","SUSE-SU-2025:03021-1","SUSE-SU-2025:03114-1","openSUSE-SU-2025:15483-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55163.json","cwe_ids":["CWE-770"],"cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/08/16/1"},{"type":"WEB","url":"https://www.kb.cert.org/vuls/id/767506"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55163.json"},{"type":"ADVISORY","url":"https://github.com/netty/netty/security/advisories/GHSA-prj3-ccx8-p6x4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55163"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/netty/netty","events":[{"introduced":"09e64d259c99be8b5b2a471a78f11e65eb82598a"},{"fixed":"7fefa5a9d6f2bf41b6b304cfe26b2e193d8f326a"}]}],"versions":["netty-4.2.0.Final","netty-4.2.1.Final","netty-4.2.2.Final","netty-4.2.3.Final"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-55163.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}