{"id":"CVE-2026-93491","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-93491","summary":"A flaw was found in Netty's HttpServerCodec. A remote, unauthenticated attacker can exploit this vulnerability by pipelining HTTP/1.1 requests on a single connection and withholding…","details":"A flaw was found in Netty's HttpServerCodec. A remote, unauthenticated attacker can exploit this vulnerability by pipelining HTTP/1.1 requests on a single connection and withholding reads. This action causes the methodOverflowQueue to grow without limit, leading to unbounded heap memory consumption and a denial of service due to memory exhaustion.","published":"2026-09-18T13:18:38.723","modified":"2026-09-18T13:18:38.723","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":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-93491"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536891"},{"type":"WEB","url":"https://github.com/netty/netty/releases/tag/netty-4.1.138.Final"},{"type":"WEB","url":"https://github.com/netty/netty/releases/tag/netty-4.2.18.Final"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-18T13:18:38.723"}}