{"cve":"CVE-2026-59902","nvd":{"published":"2026-08-17T18:17:36.087","modified":"2026-09-23T15:31:54.467","status":"Analyzed","description":"Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, io.netty.handler.codec.sctp.SctpMessageCompletionHandler limits incomplete messages and fragment counts but not maxBufferedBytes, allowing unauthenticated peers to exhaust memory with large SCTP fragments. This issue is fixed in versions 4.1.137.Final and 4.2.17.Final.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://github.com/netty/netty/commit/1b5abc6443b63726c72cdd285af2feb7ddbb8ff7","https://github.com/netty/netty/pull/17213","https://github.com/netty/netty/pull/17217","https://github.com/netty/netty/releases/tag/netty-4.1.137.Final","https://github.com/netty/netty/releases/tag/netty-4.2.17.Final"],"products":["netty:netty"],"source":"nvd","synced_at":"2026-10-19T22:49:10.689564601+00:00"},"epss":{"cve":"CVE-2026-59902","score":0.00365,"percentile":0.30415,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2qj4-mmr9-4v2f","url":"https://osv.dev/vulnerability/GHSA-2qj4-mmr9-4v2f","summary":"Netty: Memory Exhaustion in SctpMessageCompletionHandler","modified":"2026-09-10T03:51:12.916206530Z","packages":[{"ecosystem":"Maven","name":"io.netty:netty-transport-sctp","purl":"pkg:maven/io.netty/netty-transport-sctp","ranges":[">=4.2.0.Final <4.2.17.Final"],"fixed":["4.2.17.Final"]},{"ecosystem":"Maven","name":"io.netty:netty-transport-sctp","purl":"pkg:maven/io.netty/netty-transport-sctp","ranges":["<4.1.137.Final"],"fixed":["4.1.137.Final"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}